Post menopause

[Gizmo6]

Hi all, I'm new to this particular group. I'm in my 60s my monthlies finished in my early 50s. I've struggled for years keeping my weight down more so as I took early retirement. Lately I've gained more it just won't budge. I've started a cardio program with mainly using free weights. I had high hopes this would help but it hasn't. I started this in Late March I've lost 2lb. I can't drop any more calories I'm on 1000 cals. I did try to drop it to 900 for 2 weeks but then I felt dizzy and felt nauseous. I did lose the 2lb but thats not sustainable. I know its my age postmenopausal doesn't help. I have some dietary issues I have to be careful with certain foods. I have ibs c ,acid reflux and some osteoarthritis in my hips. Any tips guys.