Thanks for your query.
is a health problem. Cold without fever is not related.
You might be feeling cold due to weather changes.
Stomach might be upset if you have eaten more the previous day or particularly if you have eaten food outside, like in a hotel.
Maintain good hygiene that is wash your hands neatly before having food and wash your hands with soap after passing stools, and drink water always from agood source.
Hope I have answered your query.
I will be available for your follow up queries if any.
Wishing you good health.