Hey there, I'm so glad to see this group getting a bit more active :-) Have you checked out Chris Kresser's stuff. OH and Food Renegade is offering her Beautiful Babies e-course for free when you preorder her book (I'm all for more real food knowledge for a great price). Might offer some MS help? I'm glad it's getting better!
As far as snacks, I have been having "issues" with almonds and a few other nuts but have a few soaked, spouted that aren't bothering me. Brazil and walnuts to be precise. Do you have a food processor? I have also been making roasted sunflower butter in my food processor (just let it run for like ... ever) and eat on some green apple so I get the carbs and it doesn't spike my sugar. Also in the same department you can take shredded coconut and turn it into coconut butter. Which I just came across an awesome recipe on the Paleo Parents for Coconut Butter Bark. Super rich, full of good fats, date sweetened (but you don't have to sweeten I would imagine) and I didn't use the chocolate chips on mine (made a bunch for hubby too). I'm also finding that if I do a coconut kefir (home made not store bought) smoothie first thing in the morning it really helps. I stick with a small amount of liver (chicken usually), egg yolks (I've been reacting to the whites...grumble), raspberries, a splash of maple syrup and the kefir and it really works wonders. I've also been doing lots of Red Raspberry Leaf tea in Susun Weed's infusion form and using that for mineral/vitamin supplements that I might not be getting. My body has no real interest in nettle leaf, which I devoured by the quart in my first pregnancy. Make me think I'm getting good minerals. Other snack ideas, jerky (home made if you have the time and a dehydrator or oven would probably work), banana and sunflower butter (although rare), just a spoon full of roasted almond butter which doesn't seem to bother me (home made in food processor), sour gummies (mommypotamus recipe), an orange, hand full of brazil nuts or walnuts and pecan's (soaked and dehydrated), fried plantain chips (this have been a life saver, pan fried in coconut oil and sprinkled with salt - think). I find that anything "baked" with egg has been giving me heartburn (unless it's egg yolk strictly) so I've been staying away from a lot of baked stuff but found some good recipes just yesterday for coconut butter macaroons (also on Paleo Parents) and although they were with chocolate chips I opted for plain or lemon zest personally. They are awesome and gave me the "sweet" Valentines day kick I wanted.
And for veggies, I have been doing celery with tuna (sans the onion) in home made mayo, with sunflower butter or cucumber slices with a home made mayo. Other women I have talked with are doing sweet potato fries baked in the oven dipped in mayo (sweet potato is too much starch for my body and I get indigestion).
Hope that helps! Good luck!!