Headaches

I am almost 13 weeks and from about 9 weeks to now I’ve experienced awful headaches/migraines. Sometimes I just have to lay down bc they get so bad, even the light hurts my eyes. It’s just hard because I can’t always lay down because of work any everything. I’ve tried peppermint oil and small doses of Tylenol when it gets really bad. I see my doctor next week so hopefully I can get some answers. Is this normal? And what should I do to help them/prevent them? I get PLENTY of sleep and drink plenty of water and have a decent diet so I just can’t think of anything else. It’s my first pregnancy so I’m assuming it’s just a symptom. Any input would be much appreciated !