A rough go of it.

This is my 3rd pregnancy and I'm having a rough time. I feel miserable like I'm already in my 3rd trimester, I'm only 8 weeks 2 days. I get bad headaches, very light headed and dizzy whenever I move. It's been very difficult to take care of my other two children. I already have bad varicose veins and I read that this can make the lightheadedness worse. Debating if I'm anemic or something. I just had blood work yesterday so I imagine I will find out of if I am. I'm very worried this will be like this my whole pregnancy.