Why am I having pain in the testicle and sometimes erectile dysfunction?

Hi doctor,

I have pain in my ankles, legs, thighs, and testicles. The pain is sharp, sometimes randomly, with erectile dysfunction. I wake up, and it slowly gets worse. Last week it got worse. Yesterday it was much more noticeable and did not go away and increased throughout the day. And today, it is more than yesterday and getting worse, gets warm sometimes, and occasional sharp pains. I have cold feet, and I have had tingling and numbness for months. Constant neck pain, stemming from the middle of the back of the neck, spreads around. I have had an MRI and X-ray with no cause. The physiotherapist, chiropractor, and primary care physician all checked out. I have full motion, flexibility, and a very healthy neck. For the past three to four months, when I get out of bed, I get dizzy. I have a hard time getting out of bed, extreme concentration issues, and memory issues. Very important, when I bend my neck back and hold for 20 seconds, I get very weak and dizzy. I can see stars, and I experience a head rush. I lose my strength and have almost fallen over many times. I have started taking Adderall XR 10 mg a week ago.