Started to hate meat! Now don't feel like eating?

I have not been eating any meat for the past 5 weeks! So weird, in past I could not even last one day without chicken! I love chicken so much that I always insisted on having it for meal times! I like prawns and fish as well! But for some unkonown reason I started to hate eating chicken and fish! But I still like eating prawns. I googled the reason and they all say its normal! Is it? I even hate the smell of it, and last week I vomitted when i had a smell of the chicken being cooked!

And since two days I don't feel like eating much at all!

I am a healthy person, didn't get sick for the pst one year and I workout everyday at the gym as well! I weigh about 54kgs ( 119lb) with 161cm (5.28ft)

Could something wrong be with my body?
Started to hate meat! Now don't feel like eating?
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