Hi Mary, Boy oh boy. I have been through this whole business and crashed over and over. No matter how good I was feeling, I had no more capacity than the day before. It made my wife quite angry when I said how much better I was feeling yet couldn't do a spec more work. I found that I had to hold the increase to a tiny fraction. I started over again and again. Finally I got it. I had to start with what I knew I could do, and increase the distance (walking) a tiny amount to begin with. After I got up to about a mile ambling along, I started increasing intensity. Again I started out at one house lot (driveway distance) walking faster and increasing it each day by one more lot. It is especially important to have the potassium, maybe 2-3 tablets twice a day for starters because as you exercise you will begin to repair and restore your muscles. You will never notice 1% change a day, any more and you risk a crash. Once I knew it was time to stop I had gone too far and was already doomed to crash. The adb12 and carnitine and so on are very important too. Don't overdo. Start lower and increase slower than you ever had any inkling you could do so little more. It adds up.