Headaches all the time and feeling sick

Hello everyone, I have had TMJ my whole life. I finished a two-year, braces in 2021. But the orthodontist did not put my bottom retainer in correctly and my teeth are shifting because he did not glue every single tooth so I am going to get another round of braces because my bottom teeth are crooked really bad even with the retainer in that I have not broken. He just did not glue properly. Started getting extreme headaches almost daily. The weird thing is it starts in my right side of my neck right under the base of my skull and shoots up into my jaw and my head. It is a throbbing pulsing pain. Sometimes it is accompanied with aura, but not always. I have no idea if it is because my teeth are shifting and now my bite is off or if there is something very wrong with me. I have started waking up every day feeling extremely groggy and lethargic and sick. On top of headaches. I did go to a doctor a month ago just for a general check up and she did a lot of bloodwork and everything came back fine besides my iron levels being a little bit low, but nothing extreme. What is wrong? Should I go to the emergency room and have them do a CAT scan? I don’t know what to do, I don’t know who to even go to to get me help. I feel like I will get written off when I say I have headaches, but they are truly affecting my life and I feel so tired and lethargic all the time. I don’t know what to do or who to even ask for help anymore.