kind of weird that you post about yourself on a bodybuilding forum when you don't even work out, but that's beside the point I suppose.
I think, if you feel like the have better health and digestion when you cut out meat, you should actually try an elimination diet instead. Precision nutrition do an absolutely tremendous right up, but the gist of it is:
-cut out pretty much everything other than a tiny list of "safe" foods
-eat this way for 3 weeks (so the inflammation caused by the allergens you used to eat has time to subside)
-reintroduce a single verboten food for a day
-go back to eating the restricted diet for 2 days and monitor your symptoms. If you have no symptoms - success! That food can stay.
You repeat this process until you have reintroduced all your foods.
I had a lot of problems with my digestion and can honestly say the elimination diet has been life changing. Some of the results really surprised me, like I can eat all meat without problem except pork. A couple of rashers of bacon here or there is fine, but a meal's worth of pork fucks me right up. Bit of a nightmare considering I used to eat an absolute ton of the stuff, but at least now I know.
Also, if you pardon me for saying, you're quite an introspective, analytical kinda guy so you might quite enjoy doing a little experiment on yourself.
Something to consider, anyway...