PLEASE HELP

I first was DX in July of 2008 with IDC had partial mastectomy,got clear margins but very close,had 1 positive node. Had 4 rounds of AC, decide on a double mastectomy. o.k here the question, has anyone had a double mastectomy and still had 1 positive node, it was very small 0.2. what would the treatment plan be. Would I need more chemo or do I need radiation. Also April of this year had thyroid removed, it also had 0.2 cancer cell. I concerned that they all these tiny cells are floating everywhere. So what does everybody suggest.

let me see if I can make myself a little clearer, sorry I not good at this stuff. I had 7 nodes took out when they done the partial mastectomy, it came back with IDC with 1 positive node, the surgeon got clear margins but not very good ones, decided to have double mastectomy, but had to do chemo first had 4 rounds of AC. Seen my oncologist he order a scan and a muga scan before starting chemo , the scan came back I had a goiter on my thyroid, he told me that I need to have it check out later on. Did the 4 rounds of AC, after that I went back to my surgeon and he sent me for test on my thyroid long story short I had to have my thyroid removed it came back cancer 0.2 had to do the radio active iodine and that whole  9 yds. Just had a double mastectomy and it came back positive in 1 nodes 0.2. I been wondering why I did'nt have more treatments in the first place. I think this time around I will be getting a second opinion. Getting ready to  go to church everyone have a good day and best wishes