Hello, so I have been taking depo shots for the past year and 3 months. I had gone in at the beginning of august to take another dose. When I went in, the nurse was inexperienced with depo. it was in and out within a second, not like normal. also she put a paper on the site saying there was blood. After the shot, I felt like I hadn't taken it. I get dizzy, cramps (dont have periods), i have acne. I don't feel like I took the full shot. Are these the symptoms if I hadn't of taken a full shot?