It sounds great, Saffie, and there's no way I'd give up any horses either. If you're in a blissful mood, there's no substitute for the calmness of horses and the summer beauty of their pasture. On the other hand, when your mind is reeling over some silly nit-wit bimbette who nearly stole your H, horses don't provide much input.
I don't suppose you could go saddle one up and go jumping over all the fences in the countryside? It would give people something to talk about.
Do you think a vacation with your H might be in order? Ever thought about scuba-diving?
I'm sorry, I'm just being silly. I resist nearly all physical activity--except bicycling--very strenuously. But I've seen plenty of people benefit from very slight changes in their habits.