Welcome patriots12.
My symptoms are more on the neuro side than vascular. I am also 20 years older than you are and not an athlete. But if I were you, I would be careful with weights.
When my symptoms started, I continued lifting weights as well as doing other strenuous work out for about 6 months.
Honestly I wish I did not as my symptoms got progressively worse. I think exercise was a major contributor (the other one being desk job).
Eventually I had to give up all exercise: running, hiking, biking, swimming, lifting as well as all my other hobbies.

Will you be able to lift weights after the surgery? I suppose so. As you are a young athlete, you have a better chance for good recovery.