<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am 39 years old I have psoriatic arthritis and currently take methotrexate once a week, last Wednesday I took it like normal as I had been for 4 weeks. The day before I went to doctor they said I had broncbitis. Well Wednesday night I felt short of breath dull psi.s in upper chest weird feelings down arms legs. They did an eng chest xray bloodwork said everything was ok. They wanted to give me atavan, I said no cause I was scared. Its almost a week later I have lost almost 10 pounds still having the same symptoms, even feel lightheaded at times. The feeling goes across my upper chest to my armpit shoulder. My doc told me to take prilosec and lorazappam in the morning night I still feel the same. Was it possible I was misdiagnosed?  <response>: Hello rearward welcome to Chat Doctor.come have gone through your query in depth. This seems in relation with underlying definite reason not being evaluated by the tests, which may be - deficiency of micronutrients, anti oxidants, trace elements, vitamins - underlying Pyrex with infection of some sort of virus or bacteria Hope this clears your query. Wishing you fine recovery from the same. Regards dear take care. 