Milk thistle on cycle is fine. While how much milk thistle affects the use of a serm during pct has been debated a few times over the years I would guess it's negligible. Short answer milk thistle is fine for cycle and pct and it's good you are adding tudca with SD imo.
Question: when you say clomi do you mean Clomid/clomiphene? Just want to make sure it's not some otc product.
Side note: welcome to AM and I hope this is not your first cycle. SD side effects are severe for some with extreme lethargy. May want to get some type of test base to help