Hi Tim. I have just had my 4th 3 weekly cycle of Docetaxel having become resistant to Enzalutamide and I would not say that it is anything to be too afraid of. I have used a cold cap and have not lost any hair so far and 3 hours in the hospital every 3 weeks is not too much hassle. The side effects are significant but loss of taste and fatigue seem to be the worst. The effects on my gut are quite manageable. The fatigue seems to be pretty severe between day 3 and 9 and this was made much worse by having a dose of Covid. I am on day 9 after my 4th dose now and I am out in the garden planting roses etc.
As Lyn says it is easy to stop the chemo if you don't tolerate or don't like it but having 3 to 4 cycles is likely to give you quite a benefit. They have put me down for 10 but I don't know if I will make it that far without blood parameters getting too abnormal. Docetaxel could also lead onto other treatments being made available to you in the future once you have had it.
Also, I just wondered if SABR to the liver met might be an option to discuss.
Let me know if there is anything else specific that you might like to know.
All best.....Mike.