On Getting Excited

I seem to be in a several week long period of prolonged excitement. I’m not feeling like it is mania but it could be. I feel slightly exhausted by it now. Some points are too much but a puff brings me down a notch to tolerable. It could be a lot of reasons I am feeling this way. I’m drinking more coffees but more of them are decaf. My dog helps, she likes attention and that shifts my focus to something else. Perhaps my venlafaxine is working better. Anyone deal with this? How long does it last?