Cytomegalovirus caused muscle twitching fasciculations, muscle spasms, heat and
cold sensitivity, myopathy, aches and
pains, spine pain, sleep disorders, major exercise intolerance, headaches, light sensitivity .... etc.
This went on for at least 4 months before it began to subside. Fortunately, and with zero help from any of my doctors, I was smart enough to discover that I had a recent CMV infection, and I monitored my bloodwork as the symptoms began to improve.