Does a betrothed girl suffering from chronic asthma sin by not informing her fiancé that doctors prohibit her from any physical exertion or pregnancy due to the severity of her condition, especially since she is receiving treatment and her health might improve?

The suitor must be informed about chronic asthma that affects pregnancy and exertion, because concealing it would be a deception. However, it is permissible to delay informing him until it becomes clear whether the disease will be cured with treatment or not, as long as the time of the marriage contract has not approached.