Morning - woke last night with pain in shoulder and back, I see a physio for muscle tension. Ignored it but got slightly anxious. Tried to call back to sleep but every time nearly nodded off got a pain in chest and feeling of shortness of breath. As soon as took breath or burped the pain went. I had a big bloated stomach as well, also on lansoprazole for reflux. I think what happened I got anxious which released more acid, then when falling asleep my body relaxes which released acid into ephosagus causing the chest pain, the pain caused me to jump hence the shortness of breath and the pain went as the reflux travelled on its way. Does this make sense or could it heart problems. I have 5 ecg's and all normal. Thanks