Based on the symptoms and history the two most likely causes for your presentation are either:
1. Symptoms directly related to the depo shot causing a change in hormone levels
2. A hormonal
imbalance due to other causes
Which is why you would have to get your hormone levels checked. You did mention taking a urine test, but have not mentioned the results, so I am assuming these were i conclusive. As you do not have anu symptoms associated with any infections, and assuming you arein your reproductive age group pre-menopause
can also be ruled out.
So please visit yur doctor for an elaborate evaluation and please do abstain from all forms of sexual contact in the meantime.
Hope this helps.