I have the blues

I know I am so blessed and lucky that I'm pregnant and carrying a healthy baby boy but I'm 15 weeks and I just have the blues! I'm moody, sensitive, my arms feel/look flabby and half the time I can't tell if my stomach is bump or bloat. I bought maternity spanx and also a belly band to keep fitting in my clothes  and they cut my circulation off I can't stand it!! Anyone else feeling down right now?