Am I ovary'acting?

Hello; I've found myself here as a result of something that feels different with my body.   I'm 52 (and a half).  A couple of weeks ago I began to have some lower back and pelvic discomfort. First thing I did was book an appointment to see the osteopath for some manipulation.  The discomfort continued.  It's not 'pain' as such.  Just a constant feeling of ache/niggle.  My lower pelvic discomfort is also not something I've experienced in years (following an endometrial ablation which means i've not had a period since).  The last couple of weeks it's felt like the menstrual / pre-period sensations that I remember...and the occasional dragging feeling. I have felt some bouts of fatigue in recent weeks too but as we do I put it down to my age (perhaps menopausal symptoms).  I have frequent gurlgling fluid in my abdomen also (it's doing it right now in fact).  

I have been to the doctor this week to air some of my concerns (despite feeling like maybe i'm overreacting); I have a fasting blood test next Tuesday.  

Am I overthinking these symptoms?

Any words of wisdom and advice welcome.