Does the impurity of feces transfer to outer clothing, household furnishings, and sitting areas through sweat, even if there is no trace or color of the impurity on them?

We ask Allah to grant you healing, and you should consult doctors. It is obligatory for you to take precautions by placing a tissue or similar item to prevent the impurity from spreading onto your clothes. You must perform ablution for each prayer after its time has entered and pray with this ablution as much as you wish until the time for that prayer exits. The Malikis are of the view that it is not obligatory to take precautions, and they pardon any impurity that affects the body or clothes and exits involuntarily. The first opinion (taking precautions) is preferable, to avoid disagreement and to strive for complete purification. Doubt regarding the transference of impurity does not make it certain that it has transferred, as the default principle is that it has not transferred.