I am not able to breath properly since past around 6 years. I don't know how and why it is happening. So, I have this problem like, when I am breathing, suddenly everytime at some moment I felt like there is something stuck in my throat and at that time only I am not able to breath properly. To reduce the cause, I literally have to make this sound like a car's engine. I once visited ENT specialist, he did not check me properly and told me that I have Sinusitis. Please help me.