Pand,
I've read lots of your posts. You are a strong woman, and you can do this. Like I said, I wish I'd had a support system, but I didn't. However, I still did the EMDR and survived!
You are absolutely right - people without PTSD will not understand. How can they? What they can do, with your guidance, is try to understand. You can let them help you by telling them what you think you might need after a session. Whether that be time alone to process your thoughts, perhaps someone could look after your son for an hour or so. Maybe you want someone to be with you, to talk to about the EMDR, in which case arrange for a close, understanding friend to be around for you. If you want to be distracted from it all, invite a friend round, who is not so close to you, for a gossip over coffee.
Obviously, I don't know all your circumstances, but you do say that there are more people in your everyday life. Use them to support you. If they care they will want to support you. It IS tough going, I won't pretend otherwise, so have a think about how you can use those around you to give you support.Sometimes that's just practical things, and sometimes they don't even know they are helping (like the gossip over a cup of coffee!). You don't have to try to be super woman, although from what I know about you, you're pretty damn close!!
I truely wish you well, and you have loads more strength and fight in you, than you give yourself credit for.
Regards
CB