Hey Tanya; funny u mention the pins and needles as I thought it was just me!! My arms seem to go "numb" really easily since I've started on the diet - ie: when i'm holding my daughter while she's having her nap, i'm sat on the sofa and within 10min my arm will turn white and start pins and needles; I also wake up in the night with pins and needles :S
Anyway, I mentioned it to my CDC last visit and she said it was the first time she heard of it... ah well... personally I think it's probably normal - I mean it's normal to feel colder during CD so imo this means the blood circulation slows down and therefore you're more likely to have pins and needles.
Anyway, I've been on SS+ for a few days and it's not happened since... So with the chest pain you're experiencing as well I'd def try SS+ and see if it helps.