I force carbed my beer Friday by setting my CO2 at about 33psi and rocking it for 3 minutes. I let it sit until Sunday and put it at serving pressure (11psi). Monday I tried it and it tasted not really over carbed but had a bite to it. Also, on top of that it had large bubbles that went away fairly quick rather than really small bubbles. Does this mean my beer is still young and it just needs time to age and condition? Or do I have a problem?