Sounds like anxiety. I have had similar symptoms during very bad periods of stress.
Neurological fears are the biggest fears amongst hypos, and the affects of stress, anxiety, and depression on the body closely mimic those of neurological disorders..
Here is a post I made last week when I went to my neurologist.
"I passed my strength test, reflex, and coordination test, and the symptoms that I told him I had didn't seem to concern him. Said symptoms of MS or serious neurological problems do not come and go through out the day, and last for weeks, or are permanent, and not just a few minutes.. Just like many of you guys told me. He said by everything hes gathered he is very doubtful that I have MS or any serious neurological disorder. Said anxiety can cause every symptom I have, because anxiety depletes vitamin reserves, and messes with your bodies P H. For the others who think they have MS or neurological problems, my symptoms are tingling, numbness, burning sensations, and muscle twitches.. I've also had days where I THOUGHT I was off balance and weak.... Obviously I was wrong.. But on the subject of muscle twitches, he said that they are not a sign of early on MS, even ALS, and said that those come long after a person is diagnosed."
Stress can easily cause muscle twitches.. Everyone on here I am sure has complained of muscle twitches..
"I have just recently went through my MS scare.. Saw a neuro and had a battery of tests and turned out I was okay.. You really got to try and trust the doctors, they are the ones who went to medical school, not you.. The MRI is telling. There would be lesions if you had MS. My symptoms were.. buzzing of the feet, numbness, eye problems (visual snow), feeling off balance, perceived weakness, muscle twitches, joint pain, etc.. The neuro literally tested for MS, and every other autoimmune disorder, and lyme disease, and for diabetes, b12 deficiency, and it turned out not only did I not have anything (thank god) I was actually very healthy. You're healthy too. Once I accepted it was anxiety my symptoms have all but gone away. Best of luck. "
So yeah, you're looking most likely at the affects of chronic stress. And I am deeply sorry about your loss
hang in there.