Hi Crazy and welcome to NeuroTalk. I'm not a big fan of taking extra caffeine. If running is hard for you, why not try walking? It's great for your bones, muscles and if at a faster pace, cardio also.

I used to manage a fitness club, until my health forced me to face reality and quit. I loved the way it felt to work out. Now, I try to walk when I can and I have an Urban Rebounder, which rebounds your feet, so there's little impact on your body. It also has a bar to hold onto.

Good luck w/your wt loss and again, welcome to our lil corner of the world..

Oh, and I'm a big fan of WW's, as you know you are going to get on that WW scale, so it makes you accountable for what you have eaten that wk. It's also a great place to meet people and talk w/others who are going through the exact same wt loss struggles. *no, I do not work for them, I was a member yrs ago and I still remember my WW days w/fondness, plus some of their good "rules" are ingrained in my lil ole brain*