16w in 2 days, constipated, burps, nausea

I'm 16w in 2 days. Everyone says 2nd trimester is the easiest, but I am really constipated (my piles bled yesterday), burping a lot and dry heaving when hungry or after food, no appetite during dinner time, and really bloated after I forced myself to take some fish, veggie and rice. Anyone like me? It took me 7 years to be pregnant, but this journey gets tougher and harder 😢 😭