Bitter taste after eating? Bitter taste in mouth?

At 6 weeks 5 days, everything I have eaten has had a strong bitter aftertaste. There's is also a lingering bitter taste even when not eating.
I tried to google and it seems either the bitter taste buds have been growing or its a side effect of growing amounts of stomach acid?
Is this normal? How long has it lasted for you? Anything that helped for you?