OMG, the fact you had the strength to go away camping after chemo is amazing. I found chemo dibilitating - I was so weak and so so sick. On the days between treatments when I did feel well I used that time to recover and recharge and I still ended up in hospital with high temp and low blood count but it wasn't serious. If I could have I would have stayed in hospital throughout chemo. I was fed 3 times a day, I had lovely nurses fussing over me, I had friends and family popping in all the time and I didn't have to feed them. It was all about me! LOL
I see you have children and I realise it can be very hard to give yourself the rest you need at this time. Friends and family often ask how they can help or don't know how to help. One of the absolute best things they can do is offer to take your children for a few hours here and there or at least cook for you and bring meals over. Practical help is priceless. Try and get the "me" time you need.
I realise a lot of women seem to fly through chemo and do all sorts of amazing things like run marathons for heavens sake. But we are all different. Don't worry about your fitness, you have the rest of your life to get back into shape.