Odd muscle reaction?

[ChemicalChaos]

Hi all,

Tonight I was sat in my computer chair as normal, but as I leant forward to reach something on my desk I tucked mt legs under the chair. I suddenly felt something go ping in my hamstring area of my right leg, and had 10 seconds of the most excruciating pain which seemed to finally go when I gently bent and straightened my leg repeatedly, though I could still feel a lump or knot where the muscle was.
I thought I'd just pulled the muscle, but as I got up, I was struck by a solid 5 minutes of totally uncontrollable all-over shaking - like a cross between being extremely cold, and suffering from parkinsons. It finally subsided and now I'm lying in bed with my leg still sore, but I'm rather worried by what just happened. Is this some kind of extreme reaction to straining a muscle?

[Mothersruin]

I'd be straight down the docs tomorrow mate.

Something going ping would be enough anyway, but the reaction from your nervous system is something I'd have looked at.

I've not heard of such a thing happening.

[Quhet]

Sounds like cramp tbh, it's not nice.
I'm prone to having in in my calf muscles at really odd moments too

[dazwalsh]

Quhet said:

Sounds like cramp tbh, it's not nice.
I'm prone to having in in my calf muscles at really odd moments too

With uncontrollable shaking afterwards?

[Sheets Tabuer]

You pulled a muscle, welcome to getting old, wait until you are over 40, st can feel like you've been stabbed just getting out of bed.

[4x4Tyke]

I've has something similar, muscle cramps and uncontrollable shivering from pain from an old injury, doctor diagnosed B12 deficiency with a blood test and prescribed folic acid supplement.