I got a viral upper respiratory infection last Sunday. It turned into Bronchitis and I started taking Amoxicillin on Thursday. I feel really weird. My breathing has been shallow and I have been focusing on it ever since. Even when I am laying down at rest I feel like I have to force myself to breathe. I feel like a tightness in my chest or like a sinking feeling in my chest. I went to an ENT today and he checked out my breathing and said that my breathing was great and that I was clear, no wheezing or anything. He said I didn't have Bronchitis anymore either. I was really confused because why else would I be feeling this difficulty breathing sensation?
Please help me, this is driving me insane.