In reply to Rhapsody:
If you've got to V5/F7a+ in just over a year, you must have been climbing a lot, with probably a high fraction of that bouldering. You say the elbow pain is preventing you from training, but what's the longest period you've taken with absolutely no climbing (not "just a short session at the wall", etc.)?
Anecdotal I know, but a friend of mine followed a very similar trajectory - improving very rapidly over the course of a year by spending 2-4 hours at a bouldering wall 5+ times per week. He started getting elbow problems, people would tell him to just rest for a week or so, he'd agree, but then we'd see him at the bouldering wall again 48 hours later (because the pain had eased off, so he thought it would be ok). Maybe this doesn't apply to you, but I think it's easy to kid yourself that you've rested for long enough when it's only been a couple of days!
As far as proactive treatments go, I think the advice about antagonist muscles is good (though 100+ press ups per training session sounds a little on the high side!). Have you heard of eccentrics as treatment for tennis (and golfers) elbow? Here's Dave Mac's discussion:
http://onlineclimbingcoach.blogspot.co.uk/2011/02/golferstennis-elbow-etc-w...
It may be worth a try.
Hope it gets better soon!