Marco (Godolphin Arabian), sire of Grand National winner Sprig, sire-line grandsire of top National Hunt sire My Prince (sire of 3 Grand National winners and Cheltenham specialist Easter Hero), and broodmare sire of leading National Hunt sire Cottage (sire of 3 Grand National winners), the latter also broodmare sire of Holstein founder Cottage Son.
Vitamin B12 Deficiency Symptoms. Fatigue is a major part of B12 deficiency symptoms (that run down feeling). Excessive breathing during normal activity or light exercise (your out of breath)-when you are low on B12 you need more oxygen in your system to run metabolic pathways hence the extra breathing. Heart arrhythmia.
There are a number of problems that can lead to a vitamin B12 or folate deficiency, including: 1  pernicious anaemia â where your immune system attacks healthy cells in your stomach, preventing your body from absorbing vitamin B12 from the food you eat; this is the most common cause of vitamin B12 deficiency in the UK.