Its truely amazing how you were able to land back in to the job you loved to do. I really admire you on the fact that you choose to follow your heart rather than the pay. Most people will choose pay and sometimes they dont like what they do, and when they goto a job that pays less then they start complaining. Majority of people fall through this trap. The thing about work is that you need to bring in results, and its very hard to bring good results when you dont like what you do.
However in your case it seems fate has plans for you. Eventually it seems you landed on a dream job that pays well, you have medical and pension. Best of all is that you are statisfied and happy with what you have and that my friend is the feeling of reall self inner happiness.