I drink more than 3 drinks per day on average (working on cutting down). i took 1 325mg acetaminophen pill this morning at 8am. any concerns of od?

One tab. no. : No concern with one tab of acetaminophen in your context.

No: Even small amounts of alcohol daily may affect the liver and while taking acetaminophen of that amount may not cause an overdose, it may be dangerous for you if you have liver problems. I commend you on your effort to cut down,but more help may be needed. Your local AA is a good place to start for excellent support. There are also inpatient and outpatient rehab centers all over the country.