Seriouls worried about this lump on my inner lip :( please help

hi

I have this lump in my mouth

It's pain-less

it's just gone quite red

i went to a and e and he said it looks like a cyst because it's soft . they said if it goes white of see the gp. w

before it was pink colour but only recently it looks more red... i have had it about three weeks

i thought it was a mucocele but they say they are clear and blueish

i have no symtoms like bleeding gums or lose teeth

im a healthy clean living 31 year old but i am quite worried ...