What Could Cause Hurting Chest, Worsening Pain After Gall Bladder Removal, Tired, Shortness Of Breath, Vision Problems?

My son has been hurting in his chest since April 2013. He passed out after going to the gym. His blood pressure went way up that day. He has had numerous heart palpitations. He went to the ER 3 times last year since April 2013. Most doctors think he is fine because he is only 23 years old. One doctor told him that he was too young to be having heart problems or gallbladder problems. After continuous pain, I took him to a specialist and they did a scan on his gallbladder He had his gallbladder taken out. But, this did not solve the problem. The pain is worse than it was. He went to the heart specialist and they did an echocardiogram and found a quadracuspid heart valve. To look further they did an MRI on his heart and said he didn t have the quadracuspid valve. We have been to numerous doctors and cannot seem to find out the problem. He feels very tired all the time and gets out of breath very easily. He has also had problems with vision. He sees bright flashes of light and black spots everyday. Sometimes the blobs are so big, it interferes with his vision. We ve been to an eye doctor and his eyes checked out okay. We are frustrated and do not know what to do.