<s>[INST] Hello, I am 35 yrs of age weigh 10 st & 5 ft 6 in.  I have had what I think is hay fever all day but have also felt tired, lightheaded and really hungry all day too to the point that I have had to eat all day to keep going. Is this just another symptom of hay fever? Any help would be appreciated. Thank you [/INST] Hi there....Thanks for writing in.I would advise you to get your thyroid levels TSH, and blood sugar leavels, FBS and PPBS checked.Thyroid problems, Diabetes etc can cause increased hunger, tiredness etc.Stress can also cause you to overeat...Hope this information is helpful to you. </s>