 [ Symptoms ] is it normal for my 2 yr old to scream and cry when i or anyone sings  on her second birthday i was holding her and i and everyone else was singing happy birthday and she started crying and screaming and slaped me and said no no stop [ Disease ] the short answer is no most medications if they are contributing to hair loss will cause a shedding process breakage is more commonly due to excessive and repeated chemical or physical trauma to the hair