So, I've been diagnosed with GERD and Chronic Sinusitis. From reading these board, it seems a lot of users here have GERD so I thought I would ask. Can it cause back pain (both upper and lower) and throat phlegm causing a cough? I'm hoping it is what's causing my current breathlessness but I wanted to know about the back pain since my HA typically focuses on my lungs/heart and back pain is a symptom of That Which Shall Not Be Named. I've been doing better since going to treatment but everyday is a struggle and I just need some reassurance. Thanks in advance!