I am active (recreational sports and gym workouts) and lab results are always great. I have muscle fatigue, foot cramps, get flushed during moderate exercise, get winded doing stairs, have knee and lower back pain (per PT anterior pelvic tilt, week muscles, tight hip flexors and IT band). Simple exercises are hard. I don t get why. I ve been pretty active my whole life. I m 46, female, mammograms reveal dense breast tissue. I ve come across info about MTHFR and folate absorption deficiencies. Do you think my symptoms have any indication of these genetic mutations?

Summarized question: Are muscle fatigue, poor stamina and body pain indicative of MTHFR gene mutation?