Lost database (no replies)

I have done something seriously stupid. I have been running wampserver successfully with no issue for months on end. I wanted to make imagemagick work but found out it tended to work better with wampserver 2, not 3 (which I currently had). So this morning I uninstalled wampserver 3. Of course it asked whether I had backed everything up and I said yes. I had backed up the files on the server, but not the actual databases. When I installed wampserver 2, the databases are gone.

I am guessing it's a lost cause, but is there any possible way I can recover the databases? I put literally months of work into them and i still can't believe I didn't make even one export backup of the database.

Thanks