If you’re shivering for no apparent reason, it’s a sure sign that…

Unusually rapid heartbeat or temperature fluctuations

see the continuation on the next pageConclusion
In most cases, goosebumps are not a cause for concern. However, if it occurs frequently and unpredictably, especially when combined with other symptoms, it is advisable to have a medical check-up – it could be the early sign of a more serious problem.