By spotting, I think you mean that you have light vaginal bleeding that happens outside of your regular periods. A small amount of blood is involved in spotting and this can be noticed on the toilet paper after using the bathroom or in the undergarments.
Bleeding or spotting any time other than when a woman has her period is considered abnormal vaginal bleeding. There are many different causes of spotting between periods. Sometimes, it can be a sign of a serious problem, but oftentimes there is nothing to be concerned about.
Stress can cause all kinds of changes in a woman’s body, including fluctuations in the menstrual cycle. Some women may experience vaginal spotting due to high levels of physical or emotional stress.
The combination of symptoms that you mention makes me think that you most likely have generalised anxiety disorder (GAD). Anxiety can lead the body to release all kinds of stress hormones (including adrenaline, noradrenaline and cortisol). These hormones and their break down metabolites can produce all sorts of symptoms in one’s body. Symptoms of GAD can include:
Sleep disturbances – typically problems falling asleep and maintaining sleep
Excessive, ongoing worry and tension
An unrealistic view of problems
Restlessness or a feeling of being "edgy"
Irritability
Muscle tension
Headaches
Sweating
Difficulty concentrating
Nausea and vomiting, abdominal discomfort
Frequent urination
Tiredness
Trembling
Being easily startled
