Bending over

Hello, I am 35 and have had the beastly endometriosis for 12 years. My Drs have been managing my symptoms by basically putting me in to a sudo early menopause with hot flashes (great!) just recently I have had a flare up and since then I have noticed my tummy which was nice and flat has started bulging I exercise and eat well and that hasn’t changed and now whenever I bend at the waist I feel sick and dizzy and take about 30mins to recover… anyone else get this? The reason I’m asking is when I asked my dr if the new symptoms could be linked to endo it was dismissed but I have started using a stool in the kitchen so I don’t have to bend and I use a grabby stick and I have had to leave work for now and it was going ok until today when I had to bend at the waist again even on my stool and now I feel terrible and I think it’s something to do with my tummy area..