Vitamin D3 Supplements

Wondering if anyone has seen issues in taking vitamin D3 supplements? I’ve been largely supplement free in my recovery efforts, but recently had some bloodwork done and saw that I was a bit deficient in my vitamin D. Ive been a bit fatigued and sapped lately, so I thought it made sense. My doc suggested I start taking vitamin d3 IU 1000. I’ve only been taking it for 2 days, but am seeing impact already I believe. My mood and brain fog have improved as well as energy, but my libido is less and my penile sensitivity is worse. I also slept worse than usual. Just wanted to see if anyone had any experience or insight they could provide?