Re: Tandem feeding - can you share with me?
Hi!
I got pregnant with DS2 when DS1 was 19 months old. We managed to nurse throughout the pregnancy, even during the dry period (approx. 80% of women lose their supply during pregnancy). We've only been tandem nursing for 4 weeks, but so far I'd say it's a positive thing.
The only negative feelings I've had toward my eldest have been when 1) his latch is wonky, and 2) when he won't let go, even after nursing for an hour. In case 1, it's because the wonky latch feels yucky (only way to describe it) and makes me want to do a heebee jeebee dance. In case 2, it's usually because I'm running out of patience; "We've been here an hour, can't we do something else now?!?"
I'm actually very glad DS1 is nursing. He's a terribly picker eater, so I feel better about his eating habits now he's getting my milk again. It's also helpful cause it lets DS1 touch base, lets us reconnect in a way that only breastfeeding mamas understand.
It's also helped with jealousy, I think. Since I can nurse them simultaneously, DS1 doesn't feel like DS2 is getting all Mommy's attention. DS1 still isn't thrilled with his baby brother, but he's coming around. Any time DS2 cries, DS1 tells me "Baby needs boobie!" 
Are there any LLL groups in your area? It might be worth looking to see if there are any toddler meetings near you.
Good luck!
Breastfeeding, babywearing, sci-fi loving, total geek of a mom!
Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind. — Dr. Seuss