If anyone could see me right now they would know I am about to bl...

If anyone could see me right now they would know I am about to blow my head off. Two weeks ago my 28 month old daughter was taken to her doctor by her father. He said she has allergies. She came back with prescriptions for Nasonex and Singulair. I thought this was odd because I RARELY hear her coughing but apparently her doctor says she is wheezing and could develop Asthma. So her father was giving her the meds and this week she came back home for school. Now I know every toddler has moments and tantrums but this week I saw my happy, loving, well behaved daughter have her very first tantrum for no reason at all. She has been falling asleep in preschool, complaining that she is sick, that her tummy hurts, sleeping 11 hours a night, 2 hours in school and still falling asleep everywhere else. She has been moody, irritable, and uncooperative about absolutely everything (so unlike her). I told her father I was not going to give her Singulair anymore and of course since "doctor knows best" she is back with him for the weekend and he is giving her Singulair. I AM LIVID!!!!! I thought maybe I was being unrealistic as a parent to expect my daughter to always be sweet and well behaved but after reading these other posts I am sure that for at least this case, mother knows best.