I have highcholesterol and gastritis problems which been causing me to stress and anxiety problems. there feels like knot(i don't feel it by touch)left side near and shoulder blade. it happens whenstress sometimes when am not. chest feelfunny twodays?

It appears that your chronic stress and anxiety are causing physical symptoms. In addition to treatment for your high cholesterol & gastritis, I recommend consulting a mental health professional for stress management coaching..

It is not feasible to provide a meaningful opinion without taking additional history, physical examination and may be some tests. It would be prudent to see your doctor and discuss if you may be depressed. Counter-intuitive as it may seem, exercise may help. Start with low intensity exercise such as walking and gradually increase the intensity as tolerated. Drink more water. Wish you good health!