Strange question

I have Pernacious Anemia and have been taking monthly b-12 injections for about 2 years. Now here is my problem, everytime I use the bathroom my legs fall asleep where I DA have trouble walking. I noticed that since Ive had Pernicious Anemia this has gotten really bad. Do yall think this is related? Don't really want to bring this up to my dr cause this is the only symptom I notice.

Any other bad poopy experiences yall?