Post covid long term symptoms are many ,none of them are specific though many people do experience neurology symptoms and respiratory symptoms . Intolerance to cold in the absence of hypothyroidism ,anemia , you need to rule out
vitamin B12 deficiency and few vascular issues.People with Post-COVID Conditions may develop or continue to have symptoms that are hard to explain.Your symptoms if at all are related to post covid ,will slowly settle down, sometimes may take UpTo 6 months.
Try for few weeks Himalaya septilin tablets twice daily for few weeks and magnesium supplement you may find some relief