I m a 38 year old woman, very healthy. 3 weeks ago I had an upper endoscopy to check for Celiac s Disease. Biopsies were negative but I was told to go gluten free due to a most likely sensitivity. 3-4 days later I started feeling like I was getting sick, a cold maybe. I felt tired and weak with a littl bit o chest pressure like you ve been at the beach all day. Those symptoms subsided and then I just felt headachy for a couple days until about 6 days later when I started feeling very tired, very headachy, weak, shaky on the inside, light headed, sometimes nauseous but not majorly, a definite pressure in my chest like I ve been swimming all day, and occasional tingling in my left pinky and ring fingers. I went in yesterday to the doctor s office and my physical exam was fine. Bloodwork was order. CBC,CMP,ESR,Thyroid,Mono, and lymes. I am awaiting the results. I am morally vet active. I workout regularly, I am 5 4.75 and 124lbs. I rarely get sick and if I do I m overit within 2 days. I have literally spent te last 6 days lying down. Any suggestions on what this could be?