Hi @Mareeh, I was diagnosed in July 2016, mastectomy, 13 lymph nodes removed, chemo & radiotherapy finishing treatment April 2017. I started dragon boat racing in November 2017. It was difficult at first mostly because of limited strength in my arm on that side & also lymphodema. I had a further mastectomy on other side & double diep in February 2019 & after 2 months returned to paddling but had been going to the gym earlier to build up fitness. I haven’t had any problems with my reconstruction as most of the work is done with your arm & back muscles & core. It is great exercise & you can take your own time as to how hard you want it to be. They are very supportive as most members have been through it too. You get a 3 week trial period before you have to decide whether to join. Hope this helps!