Sorry ahead of time that this is soo long. This is the second time i have felt this way. Today i had to leave work almost two hours into my shift because i was feeling weak, i was having a hard time focusing, i was hot, then cold, then dizzy. I had an under shirt on and when i went to take it off i almost lost my balance.. The first time had these feelings, i drank some oj and felt better within 20-30 minutes. When i had cheerios, some oj, a few sips of coffee, and a bolthouse fruit smoothy and nothing worked after almost two hours i made the decision to leave work.. I take blood thinner shots and Thyroid meds daily. I called my doctors nurse, and told her what i had experienced and that its the second time but it was a little different, and i actually didnt mention the balance thing but she believed it was my blood volume difference.. Has anyone else had this or felt these things? Was that what it was for you? I am a ftm and i was just too scared to keep working as i work at tim hortons. I am 21 weeks monday. And i also have a doctors appointment that day