Acid Reflux And Sharp Pains And Bathroom Trouble??

I'm a 14 year old girl who has acid reflux. In the past month or so i've developed unusual pains and things happening. I've had trouble going to the bathroom every day and I feel like I have to go, when I have just went. I also have lower abdominal pain and sometimes feel like theres bubbles popping, im assuming thats gas, but the pain still persists. Everytime I eat the acid reflux gets worse and everything else. Also I have this sharp pain in the lower left rib cage that throbs or goes on and off at times, then stops. I dont eat junk food at all and bananas and toast are the entire part, along with fruit and some veggies, in my diet. I feel fatigued and dizzy, sometimes hard to concentrate in school because of the pain. Im always bloated, which really gets annoying after a while. I dont know if this is normal or all related or what the heck is wrong but I cant connect the dots, anyone have suggestions? Please reply back with anything :)