I had a porta Cath inserted. Although I had good veins I didn't want to destroy them. The specialists can't give you certainty but staying positive will certainly help. I ask lots of questions all the time with my Oncologist (haha) said I had been a difficult patient but it is my body and I have rights to ask as much as possible and so do you. Always listen to your body it knows what is best. I had only one node involvement but fast growing cancer so opted for 16 chemos and 20 rads and now on Fermara. Hair does grow back and you do eventually start to feel like your old self but with different perspectives I find. Do what you think is best for you. Take care