Embarrassing Meltdown...Advice pls

So im roughly 6 weeks pregnant. And I thought I had no major symptoms.

Over last few days I have been very irritable and moody. Im usually very horny but I've been telling my husband to not touch my boobs or tummy.

Today I had weetabix at 9.30am. At 11 I suddenly felt sooo hungry that I wanted Burger King but Im working! I looked in the fridge and freezer and could not find anything appetising. So within 5 minutes...I breakdown crying whilst making a pickle sandwich.

Surely I'm not going crazy and these are my hormones?