<s>[INST] Hi, My 21 yr old daughter is tired all the time. we have seen a gnrl phy; blood work and chest xray, Asthma Doctor exam. Blood only showed a very little low blood -sugar(rx= B12), Asthma = The known alergy and (rx =  singulair, and watch closely for when symtom happen, 1 month. this Dr referenced EIB even though the tired all the time is not exercised enduced. Could there be another direction we could look? [/INST] Hi, Thanks for asking. Based on your query, my opinion is as follows.1. Need to evaluate for hypothyroidism.2. Along with it diet needs to be watched and improved. Hypoglycemia is dangerous and cause severe injury to brain.3. She needs to keep glucose powder with her and take it during signs of dizziness. More details necessary for further opinion. Hope it helps. Any further queries, happy to help again. </s>