What Causes Dizziness, Tiredness And Redness In Face?

hello my name is troy and every day for 5 yaer i live arizona outside cuase me get dizzy and tried all time and sick every day. i cant stand very hot outside get littie red face pian body but i live colorado last tme i visit colorad marh 2014 no plrobem stay for 2 month get fresh air breath great but arizona no still prolbem my good rined and god tell me sugget best for mei bak colorado safe i dont want be sory happen in arizona still live