Chest & Breathing Problems

I am a 16 year old female, with no allergies or other medical conditions. For 2 months now, I have been dealing with chest pain. When I inhale, there is slight plain across my whole chest, and sometimes I hear small cracks. On the side near my heart, I've have a couple times that the pain felt like a twisting and squeezing pain. I've had back pain as well. I saw a doctor today and had an x-ray but he said everything looks good. I am worrying if it is a heart condition.

I’ve been having pain in my right rib cadge for 2 months, feels like ribs have been sinking in went to doctors 4 weeks ago and they gave me ibuprofen and it didn’t drop the pain. Last night was closing draw and heard a crack now in a lot of pain hurts when breath and sit up straight

I am suffering from sleep apeanea... now every alternate day i suddendly wake up from sleep due to choking of breathe..

I've been sick for a week and a half to two weeks. It started out with my throat being irritated. I noticed white patches in the back of my throat, my tonsils and uvula both were extremely red, irritated and swollen making it difficult to swallow. I developed an irritating cough that progressively got worse. I have shortness of breath, my chest feels tight, I gasp for breath when I start coughing repeatedly. Note: The cough developed last week when it was -1 outside. I was working in the cold.

Heavy snoring in sleep and having problem when he taking breath in the sleep. He will stop taking breath suddenly he will start taking breath and start like heavy soubd

I have breathing problem during night time. Im not able to breathe properly if i lie down. I feel like there is exactly something between my lungs. I can feel the cold or mucus there. If im tired i can sleep normally. If im active during night i have the above problem. Also initially cold used affect my throat,then it moved to back of ears, now i feel its between the chest, i feel like something is tight in there. When cold was behind my ears l, i get severe headache too. Kindly do let me know, what's wrong with me. what medications are suggested ?

I smioked and using tobacco from few years. I m feeling pain in my chest in my cough there are some black black material coming from inside. I want to became a healthy person. Please seggest me what I do. Plz

Doctor effused the liquid from left lung. Echo showed heart is normal but dextroverted. Still have cough and discomfort when walking. Please advise.

Having asthama problem.............sometimes its become very difficult in breathing...what should be done to avoid it?

Feeling shortness of breath occasionally............................ Please help me out.............