I second all of aeh's insight. I'd also add that to achieve a high scaled score on block design, you are expected to correctly complete all of the designs, and do so QUICKLY (70 seconds or less, generally). The time bonuses make or break the score on the WAIS.
Your scores are nothing to be ashamed of. You're bright! And, your scores are fairly commensurate with your reported academic performance. Studies tell us that mild anxiety can cause examinees to perform better than those without any anxiety, and that the effects of ADHD on cognitive scores are not typically statistically significant, especially in adults.
Obviously I can't comment on whether you're accurate about what items you answered correctly and which ones you didn't, your ceilings, etc. In terms of the information subtest, you can give a "true" answer without it being "right"--you may have given a simplified response that, while technically a true answer, was not what the question was looking for. The same is true for similarities and vocabulary. It's not so black and white.
Were you given a CPT? A PAI?