What is going on with my eye (1 dropping & looser skin on the other)? (Photos)

During the last few months of my pregnancy I’ve experienced changes in my eyelid/lids. I feel like one eyelid is dropping and there seems to be looser skin on that eyelid. I lhto the DR an had bloods etc to rule out neurological issues. My one eyelid seems to change throughout the day but I’m not sure if that’s because sometimes I’m consciously keeping it lifted. What do you think this is and what would my options be? Are there any alternatives to surgery in the UK?