I've had Mirena for 5 months now. I bled for the first 3 months ...

I've had Mirena for 5 months now. I bled for the first 3 months ... straight ... but months 4 and 5 I've had regular periods (which I'm hoping disappear altogether as they did with BC Pills for me). Anyway, I'm trying to weigh the pro's and con's. I'm 33 and don't want kids, so I think this is a great alternative to other BC's with the 5 year safety, however, I have seriously been CRAZY tired and lacking energy for the full 5 months and am so bloated I look pregnant (when I normally have a flat, attractive tummy). I've never experienced anything like this. I'm not ready to remove it for these irritants - yet - because I truly feel it's a fantastic concept. Was anyone able to combat these things? I'm not about to get on diuretics because that's a temporary and unhealthy habit. I drink plenty of water, work out (when I can find the energy) and eat very healthily. Any advice that's worked for others is welcome!