Strange headaches first trimester

Not sure what group to post this in but I’m 6 weeks pregnant and have these headaches everyday not like my usual ones. Before pregnancy I would get a lot of migraines and stuff but now I feel don’t get pain in like one spot or my regular migraines, it’s not bad ‘pain’ but it almost feels like my blood pressures high and my heart is beating faster and my head feels like it has more blood flowing to it like it’s going to pop or something. Idk how to explain the feeling exactly. (I have taken my HR and blood pressure and neither are high as of right now)