How Can I Relieve Pain From Constipated Cat?

It night time, mum is ill it is ill and i have gave it fish oil water(alot of water) using a seringue thing without needle. Plus im only a Young Teenager. I have no idea mums fast asleep and a=same as siblings. Plus it wont eat idn what to do help might be useful?

What has it been eating where have you been putting the fish oil.....

Tommorow morning take ti to the vet they might give you something youll have to try and get yoru cat to EAt
like a laxative for cats i suppose or theyyll suggest foods or thigns for yoru cat my cat doesnt eat for two days sometimes but i dont reccomend letting it do that