Physical symptoms

So on the physical symptoms I wanted to know what it meant for sex drive and insomnia. I'm not sure how to identify my sex drive and insomnia with mild, moderate, or severe I thought sex drive was a high or low thing? Insomnia a restless and sleeplessness thing. Like when my boyfriend ask me if I want to have sex and I really don't feel like it and its been a week since we had sex do I mark that as mild? At what point could that be severe? And if it took me 45-60 minutes to fall asleep that night or feeling tired but not being able to sleep until 3am. I just want to make sure I'm identifying these things correctly