I cant move my leg to walk – all my body aches?

I m 25 year old unmarried adult. I have a problem of all body muscle pain, muscle spasms. Sometime, i cant move my leg to walk freely and hand to wash face. It occur unconditionally. I have discuss with a PMR doctor and took some test like calcium level, typhoid, potassium etc. but i found its all normal. It happened to me from last 3/4 year but unconditionally i.e. After a month or after 3/4 month and last for 2/3 days. I don’t no the cause of it. Plis help.

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