Chest & Breathing Problems

I have sudden pain which started yesterday. It hurts under my left breast and I am scared about it. It is very painful and I feel it is coming from the breast. What can it be ?

Continuos dry or wet Coughing, mostly at night time, couldn't able to sleep, taken doctor treatment but still the same

From past 8-10days i am experiencing chest pain on right side near to collar bone i dont have any breathing problem. I feel like some kind stress is happening.

It started last year in March 2019. I was having pain in my chest I went to meet doctor and i have done xray ctscan and everything was normal. My doctor told me it is costochondritis. But after 1 year my pain suddenly increase when I start doing exercise (chest stretching) . My situation become worse. Can anybody tell me when I will become normal again?

From past 1 week I have observed pain in bone near the chest to the left near to breastbone when pressed .sometimes sudden pain when taken  breath like current shock.when pressed the pain is increased normally no pain.whst can it be.

I have chest pain in the middle for last 1 year. And problem in deep breathing. I am ana positive.tell me what can i do.

Mouth breathing in day time also, at night also, poor sleep, lethargy. Pl suggest whom to consult ENT, dentist or pulmonary specialist

Sometimes during normal breathing i suffer from acute chest pain. It pains if i inhale and exhale. At that time i stand still and breath with low amount of air in and out. Even if i try to take more air in, then it pains. It last for like 1 minute. What is it ?

Today I was sitting on my bed watching my phone and suddenly I felt a sharp stabbing pain in the Center of my chest and it was like it come and then goes for few secs and gen come for few sec it kept happening for 3 mins and lied down but still I felt then I sat again and it disappeared finally but left me scared ..what was that no other symptoms

Hi Doctor, My age is 26 and smoked cigarettes for 3 years. I have a feeling that food is getting Stuck in my throat. No bleeding or pain (Just sore throat in last week, which comes and goes). I have acid issues (GERD) from last 2 years and sinus issues from child hood. Please advise me if this can be any throat related cancer.