Hi, um.... I have anxiety and depression also my grandad died from a heart attack. You know when you get that gray faced sinking feeling with depression, a bit like a stone bungieing from your chest supported by a few dwindling strings of Bubble gum... No?.. Yeah? , well is it ment to hurt / ache , its more on the left side and sorta feels tight or similar to when you get air trapped in your chest/ back or if you swallow a hot chip but with out the hot feeling. I hit bongs quite a lot too and not the clean American yanky way, the water is always black and thick (weeks old) also I don't use a bowl I just plug the tube with tobacco then put the weed on that, I don't get these pains when I'm smoking just when I sink with depression. Any idea what this is???? I don't really want my heart to pop it could suck