@Glen19 I had FEC chemo first and the incredible headache started towards the end of the C big bag. It lasted well into the following day. Nothing eased it, but Endone made it possible to sleep for a few hours at night.
Endone is only short acting but the Oncologist worked out how much I could take to get through the days it was a problem.
The headache happened after each of the FEC infusions, I am sorry to say.
I did not get them on Taxol.
Endone will not help the constipation problem.
I found using an ice pack on my head and neck while I was in the chemo chair, and again when I got home really helped ease the pain. The nurses in the ward supplied it for me while I was there.
When I got home I had a double ziplock bag of rice in the freezer, and put it onto the back of my head straight away. It seemed to make the headache last a bit shorter time.
The first two days of FEC were a write off for me, I just lay on the lounge.
Your Oncologist can give you a script for strong pain killers if you need them.
Give your Oncologist plenty of feedback for your side effects.