Both feet swell some while seated and reclined. Going to bed eases swelling. Applying lotion difficult due to painful hips even with applicators, toenail care near impossible. I take hydrochloride for bp, and levithroid for thyroid, no other prescriptions. Not diabetic, good chlorestoral. I am 84.
If you have trouble making your doctor's office get you seen quicker, tell them that you've noticed a marked change in your condition and are concerned it could be a warning sign. That should gee them up a bit.
If you have a footstool or a rising/reclining armchair, keeping your feet up will help to avoid the swelling in your feet. I should avoid using any lotions, especially scented ones, until you've made sure there isn't anything sinister going on. Is the discomfort in your lower legs affecting your sleep? These are all things you should mention to your doctor.
A chiropodist or podiatrist will be able to help you with foot care. Again, your GP/PCP should be able to put you in touch with the right person. We were lucky enough to find one who came to our house, but you may need to go to their clinic. Are you okay for transport?