Anxiety is isolating and can feel like it is eating you up from the inside. The physical manifestations can be debilitating and exhausting. If you look closely at anxiety, you can begin to see that our thoughts, feelings, behaviours and physical symptoms all interact and combine to keep our anxiety going. Things like mindfulness, distraction techniques, CBT skills can assist with alleviating it. However it's important to get to the root cause. Talk to a friend, family manner or therapist to understand yourself better and what is triggering it. 
Suffering in silence with anxiety only exasperates it.