Saw baby last week

Hello ladies, I saw my baby last week measuring at 6 weeks and 5 days and heartbeat at 133, doctor says everything looks good. Well last night I've started having headaches and it seems it won't go away. I lay down and then when I wake, I still have this headache. What should I do? Haven't had any other symptoms than the headaches and tiredness. I'm currently at 7 weeks and 5days. Please help. Is everything okay with me and baby? Also my mild cramps has stopped so I'm worried?