Why do I always think my husband is cheating on me?

It's pretty normal. You're just afraid of losing your favourite person or getting hurt by him, but think about it too: The relationship doesn't make any sense when it's not based on trust.

Your probably insecure, have you had previous relationships that your partner had cheated on you? Part of being in a marriage is have trust towards one another. Don't try installing software to track him, instead confront him, but don't accuse him of anything it will make him defensive. Start of by saying "I haven't seen you that much at home, is everything alright" "Is there something you need to tell me"

Because you love him so much that you are scared of losing him somehow, you need to ask him if he cheats on you so you will know the truth, if he lies only you know your husband.

Due to some incident which has occupied in the subconscious mind may lead to think my husband is cheating on me

The brain is a strange part of our body. It is always thinking harder than it actually should and can come up with some very far fetched situations.

They're isn't enough trust in you marriage, I'd say. Trust is very important in a marriage if you can't trust your partner, how can you live comfortable with them? If there's always doubt and suspicion.

Why do you think your husband is cheating on you? Are you feeling secure with yourself, in your own life? Sometimes we look for problems in other people when we ourselves are feeling lost.

I think that you are the only person that could truly answer that question. Perhaps, it has something to do with past relationships or experiences. It could even be the result of a lack of security in your current relationship. Either way, you are not alone. You're even being realistic acknowledging the possibility that it could happen but that could be exhausting as a constant thought.

Maybe you are insecure of you have good reason, you can only answer this question as usually if we have the feeling it is because of signs. If there is no signals or evidence then be careful as insecurities can destroy relationships and state of mind.

Is there something that is making you have a lack of trust in him? Is it what he does or has done that makes you worried? It is natural in a long term relationship to have the odd doubt, but unless you have full proof or a long conversation about whether or not they have cheated then it's hard to say why you necessarily feel like this. Were you in relationships in the past which made you feel like this? Or have you yourself been in a position like this before? Find more information within yourself as to why you feel this way about your husband, and your worries will wash away if you have full trust in eachother and can speak about these feelings openly.