Timing belt replacement

What is your question?

I just replaced timing belt 2 days ago, car has been driving fine until yesterday I drove across town and back and noticed it idling a little high, so I got a timing light and it was not 10 btdc when I had first timed it, now it was at 5 btdc, so then I moved dist. cap until 10 btdc, then car drove fine again, I got home went inside for a while then had to take off again, when I started the car I noticed a high idle again, so then I checked timing again with timing light and it was at 15 btdc, so I moved dist. cap again at 10 btdc and now waiting to see if it stays there or not, someone told me it is dist. but it did not act like this before I replaced the belt?