That is a whole heck of a lot of change to take in all at once. But they are all such good and positive things! Still though, it can be stressful to have so much in your life changing- it may bring up a lot of emotion and anxiety you didn't even realize. There is a lot of work involved in all those things as well. Moving, loans with the house and car, and weight loss... that's a daily struggle. It's perfectly normal to feel the way you do.
It certainly doesn't sound like you are splurging or living beyond your means and you absolutely deserve it!!!
Congrats on everything you have accomplished- and don't for a single second believe you don't deserve it. You have worked hard for everything that is happening, now is the time to sit back and enjoy it!