ok now I'm worried. I got the JJ vaccine 4 weeks ago. Suffered semi bad flu for few hours that night then after felt great. Now some who now me may consider me a hypochondriac but I've felt a tad "off" since the vaccine but kept it to myself. Maybe only 2-3 tiny lightheadedness episodes while walking the dog (nothing major just more of "what was that"), or some very minor chest tightness and stomach bloating feel.

But last week (would have been 3 weeks after shot) I awoke in the middle of the night with pretty a bad chest pain like you describe. Felt like it was in middle of my chest and was quite painful. I had to physically sit up in my bed for about 5 minutes hoping it would subside. I got up and got some water and hoped it didn't get worse as I started contemplating what I should do if it does.

I was so tired though I just propped myself up with pillows and slept sitting up against the headboard because laying down seemed to make it come back worse. I eventually fell asleep and when I woke for the day I still felt a small amount of pain still. Went about my day normally and it seemed to go away later in the day.

I would think I am out of the window by now after 4 weeks to which I am in any danger from what I'm reading on news sites? I've been the gym since that episode and have done cardio fine. My wife suggests I take some low-dose aspirin for next few days.