Pregnant or hormone problems?

Hi there

I was on the pill for 10 years (well, 3 different ones actually), came off it in Feb this year, my periods were kind of regular (and still are, albeit lighter and shorter).

My situation is I'm experiencing the following:

Nausea (and a lil tiny bit of actual vomit)
Indigestion
Sore/enlarged breasts
Constantly running to the loo
Mega teariness and mood swings
anxiousness/butterflies
bad acne, hair growing in BAD places, plus my own hair can't decide what it wants to do - greasy/dry/greasy/dry - pick a day!
Constantly shattered- only sleeping 5-6 hours a night broken sleep - a new addiction to hot chilli sauce and my fave Cheese & Onion crisps are knocking me sick

I've done 3 tests - 2 supermarket own (1 and 3 days before my period was due) and one clearblue digi, yesterday (last day of my short light period) - all negative!

My doctor is getting me in for blood tests - we're all convinced I'm pregnant, but the tests say no!

Any ideas???

Thanks
Kel x