Effectiveness of VestAid App

Inclusion: * Snellen visual acuity (corrected) greater than 20/40 * No more than 25dB hearing loss at 500,1000, 2000, and 4000 Hz * Ability to detect 4.31 using Semmes-Weinstein monofilament at the lower extremity * At least 40 degrees of neck yaw motion with only mild to moderate pain (6 or under on 0-10 numeric pain scale) * Internet access at home * No significant residual from past musculoskeletal or neuromuscular conditions * Ability ambulates unassisted * Diagnosed with a concussion or inner ear problem the last 30 days * Between 18-60 years of age * Can read and understand English * Has complaints of dizziness Exclusion criteria: * Greater then 30 days since diagnosis of concussion/mTBI or inner ear problem * No access to internet at home * Younger than 18 years of age or older than 60 years of age * Cannot read or understand English * No complaints of dizziness and/or balance deficits * Have significant neuropathy * Cannot see tablet clearly at 1 meter * Neck pain \>5 on a 10-point pain scale.