I absolutely love red wines with Italian food. My palate loves it, but my stomach doesn't lately it seems.

My question is this: Which variety's or specific reds, or wines from specific regions are the least acidic? I can drink chardonnay or pinot gris without any issues, my issue's are only with reds.

Seems like a tragedy not to be able to enjoy a nice red with Italian fare.
Thanks for your help.