welcome health care magic forum,
yes the pain of the migraine (or as an effect of migraine medication) could cause an increase in blood pressure can cause nosebleeds
can also cause some nasty headaches
and also causes nosebleeds.
So it is better you should switch to Homeopathy
, which is the best treatment for migraine and has no side effects, painkillers may give you some reief but that too temporary only.
For more info mail us at firstname.lastname@example.org or visit us at www.drkackerhomeopathy.com