I've taken all three of the above mentioned oils as well as combinations of fish and flax seed over the years. I didn't really notice any hair changes. It's good for for depression though and I think my skin was a little less dry.
The smell could certainly be the fish oil. Maybe try switching to flax seed oil and see if it changes.
2/f/i, waist length w/ long layers

pwd: hair

~a wave in a sea of curls