"Getting in to a tizzy" is a phrase used to describe when someone becomes anxious or excessively worked up over a situation. There are several other synonyms that can be used to express the same sentiment; one could say that someone is "freaking out," "panicking," or "losing their cool." This type of behavior may manifest as pacing, fidgeting, or trouble concentrating, and can be caused by a variety of stressors such as work deadlines or personal relationships. It's important to recognize when you're beginning to feel overwhelmed and find healthy ways to manage stress, such as taking a break or talking to a trusted friend or therapist.