Why after 18 months would I start to get side effects again? The last two times I’ve taken it on (Monday evening) I have felt like death on a Tuesday morning 
I feel very nauseous again. Shall I take a few more doses to see if it passes or should I be thinking injections instead? Thoughts anyone?
I switched pretty quickly from pills to injections and it helped a lot. As for why this happens--that's the beauty of PSA. Just when you're OK with one course of treatment something happens! Lamb probably has the medical explanation for you.
Thanks,I’ll wait & see if Lamby has an explanation!