Dehydration?

Help ladies! I’m coming up on 8wks. I’ve had severe morning sickness (more like all-day) for about the past week now. Today I woke up feeling Lightheaded (dizzy) and just overall out of it at work (Desk job so nothing too strenuous thankfully). My whole body is aching, dark urine, my hands and legs are hurting. I’m afraid I’m dehydrated? I’m trying so so hard to hydrate, but I can’t even keep down water at this point. This morning I tried just a small amount of jello and water and couldn’t even keep that down. It’s been all liquid at this point since i can’t eat. I just had a popsicle, waiting to see how that sits. I am trying to avoid medication as I have had previous issues with it before..

When do you worry about dehydration in early pregnancy? Can it get serious? Any other suggestions? Do I go in? Thanks ladies. Was not like this at all with my others.