Cabergoline overdose

I've been taking an overdose of Cabergoline for about 10 years now because of the Invega. We wrote a letter of medical necessity. 2 mg weekly.

While it's helped lower prolactin and sexual function.

I googled, "what're the long-term effects of being on an overdose?"

I read:

Cabergoline can cause heart and lung problems, particularly in people who need to take it over a long period of time. In order for your doctor to check for this, you may need to have an ECG, lung function tests, blood tests and an X-ray from time to time if you are taking cabergoline long-term.

Also, cancer?

And this is people who take the max dose, 1 mg.