Neuritis and cramps are two different things . Cramps are never due to nerve injury. As far as calf muscle cramps are concerned , there are numerous causes . It can occur due to dehydration , fatigue , loss or non absorption of calcium due to Vit D difficiency,loss of magnesium due to repeated vomiting etc.
Cramps can occur any time, during rest or activity or even in pregnancy.
The common remedies includes stretching, hot or cold compression.
If you are having cramps regularly it would be worth speaking to your doctor, we are not medically trained on the forums and can only give details of our experiences for our bodies. What works for me might not work for you. Check with your GP just in case you are deficient in anything which can cause cramps.
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