hi basically i am having trouble breathing sort of. it feels like i constantly need to take a deep breath and yawn, but when i try to take a deep breath or yawn most of the time it feels like something stops me half way through the deep breath or yawn, even on the odd occassion when i am able to get that satisfying deep breath or yawn i need to do it again a minute later...i had an ecg a few days ago and it was fine, my resp levels were fine and the paramedics said i was all clear, but im really scared they have missed something....i am constipated and have been for a while and when i had the xray that determined that the doctor said that the constipation was high up so could it be pushing against my lungs or diaphragm or is this ust another anxiety symptom that i keep being told. does any else suffer this, its been going on now for 5 nearly 6 days :(