sick since the beginning

hey ya'll
i was just wondering if anyone else felt like me. when i found out i was pregnant i was also being tested for allergies. now i am 16 weeks and i have had the stomach flu, and gone to the hospital like 3 times. i cant sleep b/c i cant breathe, and can't ake any meds b/c they all make me sleepy and i have a 15 month old to take care of. this just sucks i am gonna be like this for the next 5 months