Thanks for posting your query.
As you said,you have got your decayed teeth filled under local anaesthesia.
Usually,filling of decayed teeth does not require local anaesthesia.
In your case,the decay has involved pulp/periapical area resulting pain sensation.
The ear pain
and bleeding may or may not be associated with filling undertaken.
An x-ray will help to rule out the lesion/anomaly underlying.
Any perforation/ledge formation during the procedure can cause such bleeding.Needle breakage during LA administration can cause complication.
I would suggest you to visit a dentist
as well as an ENT specialist
Hope this helps.