go to the doctor and have him/her take a look. it will turn out to be nothing sinister.
the lump on your rib side.... I have one. I saw it a year or two ago. I assumed at the time it was a lipoma or other fatty type cyst. I have been to the doc a couple of times since i noticed it. I haven't even bothered asking about it because, well, it is a nothing.
basically what is going on here is your anxious thinking is having a look around at your body and collecting several minor aches/pains/oddities and then 'thinking' them into some big BAD thing. THAT is what anxious over thinking does to people. the trick is to see what this thinking (I call it beasty) is doing and not playing the game.
Your mission, if you choose to accept it, is to foil BEASTY'S plot before it gets you on the runaway train to Catastrophicville" this message will self destruct in 20 seconds
hey before it self-destructs....... what proactive methods are you doing daily to keep runaway anxiety from taking you over? what is working? what isn't? realize you can be doing all kinds of good stuff, but if you are engaging in the poor, reactive behaviors---ie monitoring, self checking, obsessing, seeking reassurance etc, it is pretty much impossible for the proactive stuff to get a solid foothold. all you will accomplish is turning yourself around in circles.