My husband finished his chemo in March,and he’s been very tired, over the last couple of months he’s felt really ill ,kept getting colds ,chest infections,his bones have ached, and he said he’s never felt so ill , luckily we had a super doctor on Monday thought it.might be due to low iron or vitamin d and they sent for him straight away as he had very little vitamin d , so please look out if you feel really poorly , hopefully he will feel better soon , he had stage 4 bowel cancer and all is brilliant news on his cancer