<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello Doctor, I have had several minor accidents over the last few years and usually have hit my head or hurt my neckback during them. I have terrible headaches almost daily, I am having a lot of difficulty completing sentences and remembering what I was going to say and it seems to be getting worse. My Doctor put me on an anti-depressant and that helped a little but not for long. Is there a test that I should be looking at doing?  <response>: Hello, Your symptoms could be related to repeated head trauma. Coming to this point, I would recommend performing some cognitive tests and a brain MRI. Other tests to consider would be: complete blood count, thyroid hormone levels, blood electrolytes, vitamin D and vitamin E plasma levels, and vitamin B12 plasma levels. You should discuss with your doctor on these tests. Hope I have answered your query. Let me know if I can assist you further. 