Why Am I being Called A Bad Mom?

My daughter is 14 months old i am a stay at home mom I spend all day with my daughter except when she takes naps which is when i clean house and i have my "quiet time" When we go out if my daughter misbehaves i warn her and if she continues i pop her not hard at all but just to let her know she is being bad. My daughter's other grandma is constantly telling me i need to get a job and put her in daycare. I can't work because i am disabled i have myasthenia gravis and most days i am fine but some days i can't even get out of bed with having MG i have learned how to pick my daughter up without hurting her or without dropping her and how to do the little things like fixing her a peanut er sandwich I had to learn how to do all that again. If i get a 9-5 job it would tire me out and i've been told by the Doctor that i would probably never work again. Her other g-ma is telling me i am a bad mom because of my disability and that i need to give my daughter up Why am i the bad mom?