Hi Di, sorry you are feeling a bit shabby. From what I understand SEs with these drugs don’t always happen immediately but occur after some time as there is a cumulative effect in the body. I’ve been on Letrozole and Palbociclib for two years and after chugging along nicely I’m now experiencing similar symptoms to you, plus joint pain. I’ve narrowed the tummy bit down to white bread and pastry. Also sweet corn and chillies now repeat at both ends… tmi ?. I’m going to ask my Onco for a little holiday from my meds at the next clinic. Hopefully that will sort it. Sick of planning my shopping around loos!!! X