well few years back..my dizziness only happen once in awhile..but i notice the last few month..especially in the summer i get really dizzy..also sweating on my hand and feet..this dizziness and sweating happen to me all day long..from morning to nite.. and when im working sometime i feel like im going to fall down..can someone tell me what is happening to me..ive asked few friend they said probably i dont have enough oxygen to my brain..but please help me out if someone knows more about this problem.

Are you getting enough sleep and rest, its important, are you drinking enough fresh water, also important.. Do you have any allergy (summer/pollen) Is your gen health good, is your diet good, all of these could be factors. Keep cool, obviously if you are prone to over-heating, get fresh air regularly, and learn to breath properly, and to relax. How is your boold pressure, how are yor sugar levels, it may well be that you need to seee your gp for an m.o.t. best wishes.