Am I nymphomaniac?

I will turn 40 next month, married with 2 small kids. I always had a great interest and enjoyment in sex since I was teen, I used to have multiple partners even for just a night in my single times, until I met my husband (still I’m loyal and faithful in all my past and current relationships) off to the best start we had a great sexual affinity in the beginning that slightly lost power in the years (we are together since 2013). The point is that I still want to have sex with him and he is now throwing excuses not to have it “I’m so tired”, “I have to wake up early tomorrow morning” aso

So I started gathering sex toys, dildos and similar tools to tease him and make his erotic senses come back… and I ended enjoying them mostly alone 😓😩

I feel very guilty sometimes about my sexual urges but I’m too much embarrassed to contact some psychological help (sometimes I’m just like “come on you’re not crazy nor ill, get your favorite bullet vibrator and let’s enjoy our time together”) any advice?