here's something you might try as a quick check:
(DISCLAIMER - I AM NOT A DOCTOR - THIS IS NOT MEDICAL ADVICE - DISCLAIMER)
This is a check for tenderness in the hepatic region -
You're not trying to "feel" your liver, you're *just* checking for tenderness, so BE GENTLE!!! NO POKING!
seat yourself in a comfortably upright position;
find the middle portion of the bottom rib on the right side (like, on a line between the nipple & the hip-bone);
place the first joints of the first 3 fingers of both hands along the underside of the middle portion of this bottom rib;
ON AN EXHALE, press GENTLY in, at a slightly toward-the-armpit angle.
There should be no tenderness in a healthy liver in response to this palpation;
don't get caught up in guessing if it's tender - if it IS tender, you'll know it!
And, IF it is tender, call your doctor, because tenderness implies inflammation, and you should check it out.
Likewise, if you CAN feel your liver when you do this, you're either poking WAY too hard, or you should call your doctor.