Anyone had symptoms on a night like you're getting really bad Cold?!

I'm currently almost 19 weeks pregnant, I have ear ache, glands feel like there up in my kneck. Think I may have a slight temperature. I'm drinking pint after pint of water and nothing is quenching my thirst 😡! I always feel like rubbish on a night but seems to be getting worse the further along I get. I only have night time sickness too. Also yesterday i felt lole the morning after youve drank too much. Anyone else been through this? Xxx