I'm sorry to hear you are having such an awful time with the chemo effects. I did suffer a little from diarrhea on FEC chemo but only for a day or so each round. Do you keep a diary of your side effects? I found this helped to give an accurate account to the oncologist re side effects and severity, so she could adjust or prescribe appropriate medications.
Chemo headaches are just the worst as nothing seems to relieve them and they just last for days. It was only the other day that I stopped and realized that I have not had a headache since recovering from my last chemo 4 months ago. Chemo certainly helps you to appreciate feeling normal again!
I know someone else on here developed a scalp infection when they were on chemo. It sounds very nasty and definitely worth a trip to the doctors.
Hope you feel better soon. Take care. Deanne xxx