I don't know what to do. Iv been on the Arm implant for 3 months now and I haven't had much problems besides bleeding…

I don't know what to do. Iv been on the Arm implant for 3 months now and I haven't had much problems besides bleeding for prolonged periods. But the last week, maybe week in a half, Iv just felt nausea, dizzy(which Iv had for awhile) thirsty all the time or or hungry and just not hungry at all. Plus bad headaches. And it's like the nausea is getting worse. And I'm just tired all the time but that's normal. Could it just be me still getting used to the birth control? Or should I maybe call my doctor? I don't know.