I hear ya man.
Here is what I use with good success.
Digestive enzyme (completegest from enzymatic therapy)
Probiotic (usually Primodophilus Reuteri from N. Way)
Fiber (combo of flax seed ,chia seed, pea hull and psyllium)
And I think this has been the best solution as of late for me. I've bumped my magnesium because I've been killing the whey and micellar casein and the calcium had be a little backed up too.
Gut Health is a good product too
and would save you a little money initially.