Mothers milk tea- cramps?

So I bought mother’s milk after hearing about it so much.

I drank one cup one night (was pumping 1oz/day if lucky..

After drinking just one cup that one night, my supply doubled to 2-2.5oz a day! That stayed like that for about 3 days after just having one cup that one time..

It tastes bad but not horrible if u add honey, I also added hazelnut creamer :)

But my concern is that I had awful stomach cramps after drinking it that lasted that whole night until I fell asleep.. they almost felt like mild contractions?.. but very uncomfortable.. nothing I would go to ER for or anything, but unpleasant..

MY QUESTION IS..

Has anyone else had cramping with this? I’ve even heard of it causing women to start AF..?

Also, would love some success stories!