Same thing happend to me when I was 34; I stopped playing for almost 11 years! My life had changed and i no longer had the time, energy or interest for playing bass at that point..
But then, just by chance, something happened that got me back into playing 4 years ago and now I wouldn't be without it for anything!
In fact, I think the break was absolutely vital to recharge my batteries after having played constantly in bands since i was 14..
IMHO, this is a perfectly natural thing to be going through and whatever happens, i wish you well with it.. Whatever happens, you'll always be a bass player!!