This year I've been having more problems than usual with lactic acid. It seems to come on as soon as I make any serious efforts at climbing in particular. I don't remember it being this bad last season. I've been spinning much more this season and I'm wondering if I should work harder to induce the burn to build up a tolerance. Any thoughts? It's very frustrating 'cause my climbing is marginal and is limited not by heart or breathing but the pain of the burn.