How long has this been going on for?
Are you on any blood thinners like aspirin or warfarin?
How long does the bleeding last for?
Do you have any other medical problems?
Is your tongue painful at all?
Any bruises or bleeding from anywhere else?
Are you sure you have not bitten your tongue whilst sleeping?
Have you had a CBC, clotting profile blood test, to check your platelets/clotting?
How long does the bleeding last for, and what do you do to trigger it?
The last 2 questions were:
Have you ever had a blood test?
When the bleeding starts, how long does it last for? What stops it?
Basically, if your tongue is bleeding for no apparent reason, then I would seek advise from your doctor. It would be worthwhile having a blood test to look at your platelet count (these are required to make blood clot, and when your counts are low, these could make you bleed), and a coagulation test (which measures clotting products in your blood). It may also be worth getting your doctor to examine your tongue.
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