I developed BFS (or so I think) last fall and suffered all sorts of crazy symptoms that had me fearful of ALS or MS among other things. I had dysphagia (trouble swallowing), muscle twitches all over, tremors, fatigue, numbness in half my face and tongue, RLS, aching, numbness, cramping and pain in my arms and legs... I could go on. At every turn a new symptom popped up. And the lack of sleep was the most debilitating. I called the crisis hotline twice because I simply had no answers and there was no one to talk to who could understand and ease my mind. I think a stressful time I had a few months earlier must have set off an autoimmune dysfunction and hormones and neurotransmitters in my body went haywire. It even led to the first panic attack of my life in which I admitted myself to the ER. I still don't have a diagnosis, but I am pretty much over thinking I have a sinister disease. I still twitch but am 90% better than where I was back in the winter. Each case of health anxiety is different but the only thing that helped me was time and getting back to doing things that took my mind off what I was feeling, like exercise. Just know that we can have health anxiety when there is a more serious health issue and sometimes when there isn't. But the anxiety can kind of feed off how we feel physically and make things seem bigger than they really are. And the anxiety causes other chemicals like adrenaline and cortisol to be released in our bloodstream which cause their own crazy symptoms. The natural response in our mind is to become hypervigilant and highly sensitive to any signs of danger (symptoms of illness in this case). Believe me, I know how hard this vicious cycle can be to overcome. But again, find whatever means you can to take your mind off things. Exercise, meditation, yoga, massage, calming herbs, projects around the home, etc... Benzos or anti anxiety meds can help in the short term.