fucking hurting

I can't take anymore of these Thursday morning runs in this humidity.  It's become too much of a suffer fest for me.  It takes me so long to get warmed up lately.  I enjoy seeing my pals but I can't even join in any conversation.  I'm trudging along just barely keeping up and fucking hurting doing it.  When we finish I can't even talk, I'm totally spent.  Starting next week I'm just going to keep up as long as I can and then mix in some walking, I don't know what else to do.  My life is stressful enough already.  I need my running to be fun, enjoyable and something to look forward to.