I have been at it since March 14th this year. I got a new gym member ship and was going 5 days a week on the treadmill. Also had gotten a new fitbit Alta (which I absolutely LOVE). anyway, my kids just went on their school break and I haven't been able to go to the gym and my steps....are no where near my goal. But that isn't my biggest issue right now. Its my knees! They hurt. I'm 5'5 and around 250 lbs :-( but when I started tthisbin March I was 263 so I am getting somewhere. However I noticed at the gym I had 1st started out a couple weeks 5 days a week doing 20 minutes then 30, then 45, now to an hour. I am even able to jog/run around 20 minutes total spread out during the hour workout on the treadmill. But my knees have been popping and sore. Dr says I am fine? I've been taking extra calcium vitamins along with joint vitamins. I'm only 31... Anyone have any tips on helping with my knee issues. I want to get back to walking and jogging but it will have to be outside and my kids with me. No big deal but I am worried about hurting myself. Thanks for any advice and sorry for rambling on :-)