Part of having this problem and not having a diagnoses of cause iS you go thru all the scenarios in the head of what thi could be.

I know for a fact flu shot played a big role.
But

My problems started in 1998 and same year I get pregnant and have a baby in 1999. Couple days after delivery my symptoms return but now effect my whole left side as oppose to neck, throat and arms before pregnancy.
Second epidural and the doctor hits a nerve that makes my left leg jump. I didn't thi k much of it at that time.

As time went my symptoms got worse to burning in toungue and water trickling down feeling on legs and forehead. Epiduarl???

Now 2003 flushot and all hell breaks loose...
So I had issues already started before babies but certainly along the way medicine could have made things worse.

Autoimmune and toxic together!! Possibly
But can epidural cause problems in face and toungue and scalp - and cramps and twitchig.
Or trouble swallowing when my throat cramps and tight.
I mean it's all over. PlUs actually the twitching amplified after flu shot.

There are days when everything quiets down.
Can toxic reason be progressive even when that toxic substance is not there for years.
Because since June of this year it has been horrendous and worsend in cramps. not fun when toungue cramps!!!