So about 20 or 30 minutes ago I felt lightheaded, Cold sweat, and a slight shaky feeling (Which I think was caused by me panicking over the sudden lightheadedness) it lasted about 7 or 8 seconds and went away. After it went away my mouth felt very very dry and sticky. So I drank a bottle of water and as I was drinking it I started feeling 100% normal again. I have done a bunch of research and so far I think it was dehydration as I have not drank anything at all today besides a coke zero. Everyone else is telling me its dehydration and all the research I have done so far has led to that. As of right now 30 minutes later I feel perfectly fine I just want to get your opinion. (SIDE NOTE: I was up all morning and drank a lot of water between 1:00am and 3:00am yesterday morning. During those times I urinated about 7 to 10 times, and have gone all day today since about 5:00am without drinking any water till midnight the next night. which was just moments ago)