I having symptoms of PID but my boyfriend not does this mean I have an STD or can u get PID other ways?

Not only from std . Tere are many reasons for pid other than std hormonal balance can play role.
Need check up. Both of you need to be tested for stds. One partner may indeed be asymptomatic, but still be infected.
Usually is. Pid is usually from a std. The cultures will help determine the source. Your boy friend should be tested as well.