Hi Diandra,

Ouch!

I agree, you may have a concussion.
Concussion are often graded, levels 1-3.
If someone was unconscious at the time of injury and has ongoing symptoms, they usually qualify for level 3.

I am still recovering from a concussion and whiplash from a random assault in a park, just over two years ago now. I have had to stay on an anti-epileptic medication to help with headaches and with mood changes. I now have a tendency toward moodswings and irritability which are best helped with this medication, thus far. I feel "tortured" by my brain's sensitivities now, when not staying on this med. (I had lost short-term memory for several months and had also lost impulse control. These were drastic changes in my personality and scary.) I am glad I can take the med and glad it helps.
This is not my first concussion, which may be a factor (for me).

MRIs and other scans can look fine with concussions; yet, it's good to check.
Glad your doctor is aware and looking into this.

I hope your symptoms resolve quickly!

Oh, wanted to share: http://www.biausa.org/mild-brain-injury.htm

Take care, Diandra.
Warmly,
DejaVu