Hi I've been off for 12 weeks after lumpectomy and 5 hypofractionated radiotherapy sessions on tamoxifen for 7 weeks am struggling far more than expected with fatigue and regulating temp .I'm on citalopram for a number of years and went through menopause naturally am 53 but expected to bounce back better.How long is average to be off work .I'm getting pressure to return and I know that shouldn't happen but it does