Gripewater/Sleep Position Help

Does anyone know where i can find some Gripe Water in the Saginaw/Keller area? I am in desperate need to try some.

My infant is now 2 months old and has her days and nights terribly confused. With my 21 month old toddler running around and wanting to potty train himself, i am tired and stressed to the limit. My infant will finally "go to bed" anytime b/w midnight and 3am. then she will sleep/eat until 2 or 3 pm. then around 7-9 when i try to wind her down, she can't. she becomes cranky and fussy and loves to be awake. i did schedule an ultrasound to check for reflux and i want to try the gripwater at night. my pedi told me to start training her to be awake during the day/sleep at night. it will take several weeks. on top of all this, i can't get her to rest or sleep happily on her back. i've struggled with this for about 6 weeks now. i've tried swaddling tightly with the positioner on her back, side/without the position/a crib vibrator/heartbeat sound--all she does is scream uncontrollably. in my effort to train to try her to sleep on her back, i've found that she will cry/scream for 45 minutes straight...that's about as long as i can go and i have to pick her up. Have any of you had a baby like this? what in the world do you do? if i put her on her tummy, she stays asleep and sleeps like she should, but it scares me!!

mother in distress/sleep-deprived, but trying to stay positive