Something is missing

Something is missing. I don't know why, but it's gone. The closest i can get to putting it in words is that feeling when you are completely overcome with happiness, where nothing else matters in the world. I think it's that feeling that is missing.

I can see myself looking around for it. I've rearranged my furniture. I've mentally commited to heading out of town for a vacation. I'm desiring a new car. I'm working out more often then I'm used to (which is probably a good thing, my exercise routine was running maybe once or twice a week). I'm wanting a tattoo. I'm strictly moderating when i drink alcohol.

With these particulars in mind I'm trying to decide if I'm losing my mind or just going through a personality change.