Sour / bitter taste in mouth

[hols1981]

Today iv had a weird sour/bitter taste in my mouth: can't seem to shift it. I know they say that a metallic taste is fairly common in the first trimester but I'm coming up to 19 weeks and it's not something I've experienced until today. I've tried brushing my teeth/mints etc but nothing shifts it and every time I eat im just left with this bitter taste in my mouth.
Any advice
Is this fairly normal for this stage of pregnancy?
Thanks ladies
Hols

 

[VikkiR]

I had it on and off now it seems to be acid taste from the heartburn x

 

[babyelmo]

I've had a funny taste right from the beginning. It started out as metallic, now it's like a bitter taste. I find eaither eating something sweet or sucking a fruit sweet helps.