big toe pain and discoloration

Hi, I am a runner,have bunions, if I run long miles my circulaion in my feet doesn’t work well, black (takes awhile for them to go normal again),and alot of pain and discomfort,mostly in the large toe…any ideas… I wear a D width asics running shoe(that does’t rub at all on the bunions….give me a clue if you can… Thank you so much!