WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms lump or bulge, muscle cramps or spasms (painful) (upper arm (bicep)), muscle cramps or spasms (painful) (fingers) and muscle twitching (painless) including Hypocalcemia, Muscle strain, and Low potassium (hypokalemia).
What causes condensation in AC ducts? A: Condensation in AC ducts can be caused by improperly sealed openings or a lack of proper insulation around the AC duct. Condensation occurs when the outer portion of the duct work is cooled down and comes into contact with warmer air, according to Ace Plumbing.
1 Condensate drain is clogged up. 2  If your air conditionerâs condensate drain is clogged, water will build up in the drain pan. 3  This moisture can be a breeding ground for mold and mildew, which (as above) will give off a musty smell that will carry up through your ductwork and travel throughout your home.