Sorry this will be long but just need to get it out. I know no one can diagnose me really but it’s driving me insane 
At the beginning of November I noticed my left leg felt ‘weak’ kind of like the feeling when you’ve had a dead leg and the sensation is slowly returning but no problems doing anything so don’t think it was actually weak. About three weeks later the feeling was also in my left arm so made a gp appt. Gp referred me for an mri to rule out a growth and ms. The arm problem was very on and off but the leg feeling was persistent for around 7 weeks and disappeared before the mri. I had occasional pins and needles and pain but nothing major. The pain seemed to be a cross between mild sciatica which I’ve had before and plantar fasciitis. I was also exhausted during this time.
I had the brain and spine mri just after Xmas which has come back clear. My gp has referred me to a neurologist but I have to wait until the beginning of April to see them. My blood tests came back showing borderline under active thyroid so I’ll be tested again in March and also low vitamin D.
Sometime during December I also started to get muscle twitches all over my body, most noticeably in my abdomen (so strong I thought I was feeling pregnancy movement!). My right hand also jerks at the wrist and my index finger. A few days ago my right foot started to ‘jerk’ too and I have pins and needles in my toes. My nose twitches/pulsates several times most days.
All of this makes me think it’s ms and just not shown up on the mri, but I have another worrying symptom which is deterioration of motor skills in my left hand/weak grip. I have trouble doing up buttons etc and this has also only happened since November. I get pins and needles in my baby and ring fingers so looking online it sounds like cubital tunnel/trapped ulnar nerve. This would make sense as I’ve spent the past 18months carrying ds1 lots of places on my hip when he’s refused to walk and also ds2 was unputdownable as a baby. I would even cook and clean my teeth with him on my left hip and my arm would ache. I also rocked him to sleep several times a night primarily with him on my left arm until very recently. Even so I’m terrified all of this is adding up to mnd as I have no pain like you’d expect and I can’t stop thinking and worrying about it.
I’m on vid d supplements and I have noticed an improvement in my tiredness. I’m also taking magnesium for the muscle twitching but that seems to make no difference.
I’m just so sad and scared and it’s really impacting on my life worrying about this all the time