COVID long haulers can report a broad range of symptoms including: shortness of breath, tiredness or fatigue, palpitations, heart rate irregularities, chest pain, brain fog, insomnia, mood changes, cough, stomach pain, headache, muscle or joint pains, nerve-like sensations (pins and needles), diarrhea, intermittent fever, dizziness, rashes, changes in smell or taste, and menstrual irregularities.