Heaviness and numbness in head. My body.

Post Covid I have alot of issues in my body. Thankfully, I have enough strength now. My issues are pain im the left side and at times center of the chest.. 2d echo and ecg which was taken 3 months ago was normal. Swollen ankles since 3-4 days now.. when I wake up I feel heaviness in head and numbness too.. if I shud describe it correctly it's like those cramps/numbness we get in legs, I feel that in my head.. I have mild headache.. I feel my vision has become weak.. my eyes feel strained.. sometimes while I read I feel words far off are out of focus or blurred.. never had this issue earlier. My hba1c is 5.7.. no doctor is Able to diagnose my concern.. I am not scared but this is effecting my quality of life..