A couple of things come to mind...

First of all, width can't be determined by height & weight--you need to measure the distance between your sit-bones. There is lots of discussion on this earlier for you to search out & read. Too wide normally shows up as chaffing, you are smacking something each time your leg rotates on the pedal stroke.

If you are getting rubbing, lube. Use a quality chamois cream or butter. Try Friction Zone to protect any particularly sensitive area, it sets up an actual shield to protect you from whatever is rubbing.

The hard knot might be a small hematoema. Probable recommendation would be time off the bike to let it heal. See a doc if it worsens, or it might be something else. But keep an eye on it.

Gel seats can feel great initially, but are not necessarily a good solution for longer rides. You sink in, so you get lots of contact area for rubbing & soreness. The gel gets hot & you sweat more, so you get rashes. I would suggest looking into a firmer seating platform. Be prepared to try more than one seat, it's hard to get it right on the first go-round. A firmer saddle will actually give you better support on long, hilly rides.

But try to get rid of your problems before you hunt for new saddles. Off-season is a good time to do that. Otherwise, you will just be piling other problems on top of your current woes, and won't be able to judge any new saddle fairly, either. You have to be hurt-free before you start testing.

Good luck.