Thanks for your query.Based on the facts that you have posted it appears that you have accidentally consumed 30 tablets of Clonazepam
16 hours back and noticed blood in the urine.
This is definitely due to acute Glomerulonephritis
due to Clonazepam.
Since it is excreted through urine please see that you drink more water so that your urine output is increased .
Do not worry it will get resolved over a period of 48 hours when all the drug will be excreted through urine.