Week 22 Migraines

I've been getting headaches/migraines on and off the past week. Sometimes it comes with bright spots too and I'm too tired to even speak. Is this normal or any cause for concern and should I check in with my gynae? I'm on a trip now so maybe it's lack of sleep too but I'm concerned it's pre-eclampsia. No nausea or swelling though.#firsttimemom #advicepls