Resentment

Hi, so lately, I've felt resentment towards my siblings lately because they got ill, and mom came home immediately for them(they are adults) yet no matter how bad my pain is i just get left at home, alone. I can barely walk right now, so I haven't eaten because last night when going down the stairs my legs just, Cohen take the pressure, so I had to use my back and arms to climb up the stairs. In these past 2 1/2 years I've been dealing with this she has never done how when things were bad for me. I'm going to talk to my mom, but I feel horrible, cause I'm mad my siblings are getting treatment I don't.