I have 2 sons, the youngest one moved 200 miles away (he was away for 5 years, but moved back to our home town 2 years ago) both sons have their own homes. I did miss them, especially the youngest as he was the last to leave and was far away. I am a very 'Mumsy' Mum, loved looking after my family and luckily now have 2 DGC to help mother! (I get on really well with my DIL, love her to bits, she is quite happy to leave the children with us whenever it suits and is grateful for a well-earned rest). But, I was also pleased that the boys had become independent and fending for themselves; after all, nobody wants a 'Mummy's boy'. So, although I did miss having our sons at home, it was countered with the knowledge that they were adults and getting on with life. Our children are only 'loaned' to us; if they can leave us and live quite independently and happily, then we have done a good job. Just look at the positives, despite your son having health problems, he has moved out and is coping - that is brilliant. If you miss him so much, can't you go and spend a few days with him now and again? I used to do this, (I am retired, DH is still working, so I used to go mid-week about 3 times a year) I was happy to do a bit of mothering, did some ironing, gave his flat a bit of a once-over (my son was single, wouldn't have done this had he been in a relationship!). We'd go out for dinner, or I'd cook a meal. He was happy to be waited on for a change, and I was happy to do it. Worked for us.