No I did not mean EHIC at all. Basically you are not entitled to EHIC at all. Nothing is going to happen, but your use of EHIC is illegal. Nothing is going to happen but by the word of law, you are not exercising treaty rights at all. You have not been exercising treaty rights since you left work. Your husbands eea4 application will be refused.
When you left work, you should have bought a "comprehensive health insurance". After this if your husband was working, then you the eu citizen would be regarded as exercising treaty rights by being "self sufficient person" because of your husband income. This in turn would have allowed your husband to make a successful eea4 application.
It works in a strange way. So for your husband to get PR on eea4, you the eu citizen must have exercised treaty right for 5 years in a stretch. Its a ping pong, but if your non eu husband works, then you are treated as exercising treaty rights by being self sufficient, and because you are regarded as treaty right, he get PR after 5 years. So there is a ping pong of rights. So in a nutshell, if you work 5 years in a stretch your husband gets PR, and if you do not work but your husband works then you still get PR but you must have comprehensive health insurance.
Having comprehensive insurance is a hard and fast and an unwaivable requirement. You can now get comprehensive health insurance, but your and your husbands residence will only start to count from the date you buy insurance. And after a period of 5 years you and him will gain PR under eea regulations
regards
