Is it bad?

So should masterbation make me feel guilty?... My husband likes the thought of me doing it and when he leaves on the road he will ask for videos and things but I haven't in months bc I just feel like I shouldn't be. Another thing is that sex feels good but I haven't had an orgasm from sex in the 5 years I've been with my husband so I get irritable bc I take a vitamin that boosts libido so I'm always horny but never get to orgasm.... it's emotionally draining and physically painful 😩😩😩😩😩