Skilled worker visa requires me to work full time. I'm currently doing a phased return to work after treatment but struggling with fatigue and recovery

Hi, 

I’ve been in the UK on a skilled worker visa for about two years. I work in the NHS. I was diagnosed with synchronous endometrial and ovarian carcinoma in November 2024. I’ve completed surgery and brachytherapy, and I currently have no evidence of disease. I feel like I should be getting back to normal life, but I’m struggling so much with fatigue and difficult surgical menopause symptoms. I’ve started a phased return to work, which is what I want, but I’m finding it hard. I’m doing three days a week right now and I barely make through the work day. If I close my eyes, I could fall asleep at my desk. I’ve been getting frequent headaches. I also have all the fun menopause stuff to cope with: frequent and urgent bladder/bowel symptoms, hot and cold flushes throughout the day, mood changes and lots of tears, and changes in memory/cognition. I can’t imagine how I will have the energy and perseverance to get back to full time work, but that’s a requirement of my visa. I know I have rights under the Equality Act to reasonable adjustments at work, but I don’t know if there is any leeway from the Home Office in regard to visa requirements. I love my job and want to work, but I’m quite worried about managing and how that will impact my future. I’m not sure where to go to get the information I need.