Cab dosing

I’ve had a very negative experience with cab at both .5mg full pill and .25mg half pill. They gave me weird issues with chest pains and random spikes in bp/heart rate most likely anxiety. Had to go to ER once. It sucked

I came off for a while and took a break and all the high prolactin issues have come right back so endo wants me to do something again. He mentioned trying cab in an even smaller dose for a few months. Cutting a .25mg pill in half or even in quarters he mentioned. Is this dose any type of effective? It’s so small it looks like a spec on my finger after I chopped it in pill cutter