fish oil and bloating and/or weight gain

1) I read fish oil helps with elevated triglyceride levels (which I have), however whenever I take fish oil I bloat like a beach whale. Do you need good fat digestion/absorption for fish oil supplements?

2) Also when I drink a few cups of coffee in a day I get runny/greasy stools, which is common with fat mal-absorbtion, but there's no fat in coffee, so any theory on that one as well?

3) does poor fat digestion/absorbtion lead to high triglycerides?