all day sickness and dizziness

hi i'm looking for some advice. I am approx 10weeks preganant, I'm waiting on scan to confirm dates but anyway thse last 4 or 5 weeks i've been a bit sicky and dizzy but mostly if i've been standing around or that anyway these last 4 days have been terrible I've felt constantly sick and even feel dizzy in my bed i am so tired but i can't sleep i feel that rough. I am making a big effort to eat and drink plenty but its hard though i do feel slightly better when i do. What can i do about this i need to manage to go to work and look after my 6 year old and other responsibilities and i feel i'm being darmatic over something that is probably perfectly normal but i really don't feel well. My husband is worried and wants me to get checked by the dr but i haven't cause i don't think they will do much anyway.

any advice appreciated