It is important to know in which area of the brain was a bleeding,n your case it seems that cribiform plate was the out let and came out through the nose.
Here in this area are fine nerves which have a control on smelling. so initially u had anosmia(cannot smell or detect smell) then perhaps now you are having normal smell or with some hyperosmia
.(sensitive to smells).
This can go away with high doses of vitamin b12
injections (upto 1000ug/day for 4 days. If you feel better u have to continue for once a week 1000ug 1 cc in injectable form.