Hi
Welcome to the MedHelp forum!
Unexplained aches and pains coming on and off could be due to fibromyalgia, chronic fatigue syndrome, rheumatoid arthritis, lupus, Crohn’s disease, H pylori infection, anemia, liver disorders, diabetes, hypothyroidism, Vit B12 or Vit D deficiency and due to calcium or magnesium deficiency. It can also be due to sleep related disorders. Please consult your PCP to run tests and examination to clinch a diagnosis. Take care!
Go see a doctor immediately!!! It doesn't sound like itcould be anything good. Leg pain and gasping for air could mean blood clots