<s>[INST] 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? [/INST] 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. </s>