Ahh, it's really no good to have your family give you the cold shoulder like that. My mom does the same thing to me sometimes. I usually get as far as, "Hey, do you ever--" and she knows immediately I'm going to ask her about some strange symptom I'm having. If I complain about it, I get a lot of, "You're fine, don't worry, I've had the same thing." Sometimes it helps, sometimes it doesn't!
The other day, though, she told me a story that might help. When she was younger, she had a spontaneous growth right inside her nostril. Kind of gross, but hey. It wasn't doing anything bad, but it was definitely something, so she went to the doctor. He told her it was a cutaneous horn, lopped it off, and that was that. Then she asked me, "Have you ever heard of a cutaneous horn before?" and I said, "No." Her point was that sometimes we get things -- perfectly benign things -- that we've never heard of before. We might have a symptom that absolutely terrifies us, but the underlying cause is either perfectly benign or very easily treated.
When my HA first started, I was terrified of my appendix bursting. Every stomach pain, I was absolutely certain it was just going to pop, and nothing could convince me otherwise. This went on for years. I went to dozens of doctors, and was told countless times that there was nothing wrong. I even had an ultrasound done when one doctor thought it might be gallstones. It wasn't gallstones, and everything else on the ultrasound was completely normal. I still wasn't convinced. Then, one day not that long ago, I realized, "Wow, I haven't thought about my appendix in a while."
I'm not saying that I just spontaneously got over my HA. I wouldn't be on this forum tonight if I had! But I was somehow able to move on from a symptom and a fear that had plagued me for a quarter of my life, because nothing bad ever happened. My appendix never burst. I still get stomach pains from time to time, but I barely think about them.
The same thing happened with blood clots. I have been absolutely terrified of blood clots for probably a year now, ever since a dear friend of mine (who notably has a clotting disorder) decided to roll up his pant leg and say, "So, I've got this blood clot," and then never show up to class again. (I did eventually see him at the start of the next semester, which was a huge relief.) I took a road trip, fell asleep in positions that would be absolutely awful for circulation for several hours, and was pretty dehydrated for the whole trip. It's something that I'm able to look back at and say, "Well, if I didn't get a blood clot doing that, why would I have one now?"
HA can be kind of a rollercoaster, I think. When we move past a certain fear or symptom, we're ecstatic. But as soon as a new one comes on, it's crushing, especially if it's been a while since your last. Try to remember that pain can absolutely be benign, and that pain does not necessarily mean, "Something is seriously wrong." If it did, my stomach would probably have eaten itself by now! Also, for aneurysm fears specifically: take Advil. Both times I've gone to the doctor for this, they've asked me if I took Advil. If I had, and the symptoms had gone away, that would have almost confirmed there was nothing seriously wrong, because an Advil isn't going to block the pain of an aneurysm headache. The ER doctor, I remember, told me specifically that most patients with aneurysms come in by ambulance.
I can absolutely understand the depression side of HA as well. It's something I really fight against as hard as I can, because, for me, if I let the depression get the better of me, then my health anxiety absolutely skyrockets. This has happened to me twice before, and both times resulted in me going home to my parents because I could no longer live properly by myself. Exercise is a wonderful tool to fight against depression (and HA!), as are eating well and getting enough sleep. Finding a hobby, something you're really passionate about, also makes a huge difference, because it can give you something to look forward to.
Making the decision to not let something control your life is, by itself, huge, and something you should be really, seriously proud of, whether you've fallen off the wagon or not. But, if the headaches you're experiencing are rattling you that much, they're worth addressing. Try to bring it up with maybe just your mom, to begin. Explain to her how much it's scaring you. She might have gone through something similar, and can offer you some advice! It might also warm her up to the possibility of a doctor's appointment. Not necessarily an MRI or a CT scan, but a doctor who can explain to you why the symptoms you're experiencing probably aren't aneurysm symptoms. Try to keep in mind that doctors don't always know why we get headaches, and that not knowing the cause does not necessarily mean there's a bad cause.