fatigue and numbness

I am a bit fatigued today. I went for a small walk to the postoffice in the morning and that was fine, however after lunch I felt fatigued and had a nap.

After my nap I felt good again so I started playing with the internals an old PC, I was only doing this for about 1 hour but after this time I again felt really tired. This tiredness stayed with me until it was time to goto sleep.

Also, I have a slight numbness to my finger tips after playing with the electronics of this PC. I am not sure at this point if this is a direct side effect of chemotherapy or if it was simply a case of doing too much and my finger tips suffered.