Lymphedema after WLE & SNLB

Hello. I developed swelling in armpit and cording after radiotherapy. She won't confirm if it lymphoedema or not. It has gone down but it is slow going. I too was given a compression sleeve. After a couple of weeks of wearing it she advised to wear it alternate days and its usually off by 4pm as it hurts my arm plus constricts me doing things. I also get fluid build up so that by the end of the day the bottom of my affected boob is hard. Getting my bra off helps and some massaging and stroking it in an upwards movement helps. I wasn't warned about this in fact due to covid, followup has been non existent. I've got more info from ladies on this forum than medics but thats cos I don't speak to any of them. I did find my arm ached at first but keep doing the exercises as they do help. Keep going....one day at a time x