Hi there.I am a 19 year old male and since last night (Thursday) i experienced a very cold feeling and i had to put 2 blankets and socks when i went to sleep.My country's temperature was 30 degrees celcius. When i woke up 2 hrs later,i was sweating and feeling hot,so i took off my sweater socks and one of the blankets and turned on the fan at the lowest and slept till the next morning when i was feeling very cold again. So i again put on everything and soon within 2 hrs i was sweating again.Now i have gastric pain,body ache and the cold feeling still and i have no fever. I smoke rarely,maybe 1-2 sticks once a week. But on Wednesday for the first time i smoked 7 sticks in a day and on Thursday i didn't smoke at all. Could it be due to that? Thanks!