Immunotherapy

I don’t quite know where to start with this post, I feel absolutely bereft, my partner was diagnosed with lung cancer in August this summer.  His treatment started in September of a mixture of chemotherapy including immunotherapy having 1 cycle each month until December.  He became very unwell after his second cycle at the beginning of October and was virtually housebound for 17 days until one evening when his temperature was up.  I took him to hospital where they placed him on a heart monitor while carrying out various blood tests.  He was found to have AF and low oxygen levels.  He was admitted for further tests and was diagnosed with pneumonia.  He very quickly ended up on a critical respiratory ward followed by the next day taken to ICU where they were going to ventilate him as he was so very poorly.  Fast forward a week and a new diagnosis of diabetes, he was discharged at the end of last week.  I forgot to mention that for a while he’d been complaining of a sore foot and toe which we’d assumed was a side effect from the chemotherapy as it’s listed on the spec sheet for immunotherapy.  Not until he was being discharged did we find out that the problem was with his artery in his foot causing the pain and was urgently referred to a vascular specialist and was seen today.  He’s now been told that due to the AF, spurs of blood have left his heart and clots traveled to his legs and caused the issue to his foot.  He’s been told in no uncertain terms that he could end up having to have his leg amputated.  He’s had knock after knock since being taken into hospital and I’m not sure where to even start to turn for help or advice to support him as best I can.   He’s gone from being diagnosed and now has AF, diabetes to come to terms with as well as a possible amputation.  Absolutely devastated.