Fish taste in mouth. To get rid of this?

I have started taking 1 Salmon Omega-3 after breakfast for Rmtd arthrts every day I have one cap,few hrs later I get this Horrible fish taste in mouth(not while swallowing). Sometime i was about to puke as the foul taste would pop in automatically - Another person who has it doesn't complain anything -How to get rid of this?Do i have to quit to get rid /there's other possible way that having capsules won't get those foul fish taste in mouth -Why is it only me and not the other person having this problem It gets worse when Client is in front and the sudden fish taste pops in mouth and my face gives the sudden reaction Tried at night then my sleep is affected as whole night randomly the taste appears . No other side effects so far