Assalamu alaikum
I have an awkward problem, that is I still suck my thumb since I was a child!, it can be quiete extreme when I am not feeling too well. I am in doubt if this is Haram at all, and does it nullify my fast? I heard a friend say anything that enters the body nullifies the fast. Plse answer my question a.s.a.p. because Ramadan is beginning soon and it is extremely embarassing for me to talk to anyone about it, not even my husband!.
Jazakum allah alf Khair