Could My Severe Migraines, Toothache, Fatigue, Dizziness, And Other Symptoms Be Related To A Past Accident?

Hello For a month, I have been suffering from severe migraines and toothache on the same side of the head, and after two weeks I began to feel very tired and fatigued in the body and inability to make any effort and dizziness, and then I began to feel a strange unpleasant taste in the mouth as if it was coming out of the stomach to the mouth preventing me from eating so that it increases When I eat and I feel trembling in the hands, what is the reason ?? Knowing that I had an accident 5 months ago, I was hit by a vehicle, but the biggest impact of the accident was on the legs and I did not feel any traces of it on the head at the time, or any pain in the head or symptoms in the head during the first two months after The accident, but after that I began to feel a severe migraine, fatigue in the body and an imbalance, and then the previous symptoms followed, so do you think this accident has an effect ?? Or is there another reason, and what is the treatment, please ?? Thank you