There are plastic guards you can buy to protect your teeth if you are grinding them during sleep.A visit to your dentist might be a good idea.
If this is an actual toothache from a cavity I have found that Clove Oil can do wonders because it gives the numbing effect.There is also stuff called "Toothache" by red cross found in most drug stores..same thing numbs it.This may burn a bit when applying but nothing like an aching tooth.The stuff was a life saver for me when waiting to get into a dentist.Also 2 Tylenol 3 worked well...your doctor may give ya a script for this....should also help the headache.Your aching tooth could explain your aching ear.I seriously doubt you have a brain tumor thats the anxiety talking.
I agree with tnmom, go see the dentist. I had this problem and found I needed a root canal and crown. I still have aching jaw/teeth sometimes from grinding my teeth, but I think it all started because of my bad tooth. I'm much better now since I had my dental work done. If you can't get Tylenol 3's (codeine) try taking higher doses of Ibuprofen, like 600 mgs. twice a day. In higher doses it works like a muscle relaxer as well a pain reliever.
yes thats right I forgot about that srmom.I remember being in misery before with an aching tooth didnt have anything.Read online about a guy who used 3 or 4 (200mg) Ibuprofen for this..so I did it worked like a charm!