Yes, another very very tired mother here but I put it into perspective. Look at what your body is doing- in the first trimester creating another organ-type body part (that is so remarkable in what it does) in just 10-12 weeks (your placenta). The energy needed to do that is huge. And then growing your bub. I think it is amazing that we are not more tired, even though it is crazy just how tired I get. I have my night sleep (varies in quality...) and one or two sleeps during the day when DD sleeps. I think last time the tiredness really eased off after the first tri and I didn't need day sleeps any more. So what you are feeling is so very normal...
Same with the hunger- your body needs enrmous amounts of energy to make and grow baby and we get that energy from food. Therefore it's normal to be ravenous so eat up all that nutritious food!