I have severe health anxiety (hypochondriac)?

I'm 22F and I've been a Hypochondriac since I was younger, but got worse when I turned 20. For the last 2 months, I've had constant feelings of sickness and pain (no, they don't go away) which include chest pain, stomach pain, (wrist, forearm, calf, foot, back of hand, neck and shoulder back area stiffness and pain).
I've also had troubles with feeling like I'm choking on food, well more so like there's something stuck there but it goes away after a bit. (I do have GERD)


My boyfriend has told me this seems like Fibromyalgia, since I've had all the symptoms and I'm also someone that's diagnosed with Anxiety and Depression already, which has made this worse for me.

My brain keeps convincing me that I have something severely deadly and scary (ALS is a HUGE fear) and my brain will not stop trying to convince me I have ALS, which has caused over 3 panic attacks in 2 days. I'm going for an EMG to test my nerves and find an answer, but I'm horrified at the endless possibilities. I've had a pretty rough life, and I just want to be happy. I'm waiting for Therapy.

Can somebody help me? can somebody give me any advice? and if by any chance anybody here has ALS, can you please try and convince me I don't have something like this? like, will anyone kindly share details on symptoms?

this has ruined my life. ):
I have severe health anxiety (hypochondriac)?
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