Advice needed

Hello everyone hopefully someone can give me some advice. Ever since I was young I wasn’t the smartest in the room. I’ve always had trouble getting stuff done without getting distracted or I’ve always kinda just let it be. Even with school work. I had so much trouble focusing . I barley passed middle school and never finished high school because of it. Well now I am an adult and I’m having the same problems. I can’t focus without getting distracted. Thoughts are running through my mind 24/7 even when I’m sleeping it feels like I’m not sleeping but I could sleep 12-14 hours a day. I have 2 year old son and I just can’t play with him all the time i either want to lay down or be left alone. My husband finally got me enroll in the our district we live in for high school diploma I finished it. Now I want to enroll in college but I feel like I won’t be able to finish since I can’t remember anything and won’t be able to focus. I’ve been chewing my nails to the point my I have no nails and I just chew on the skin. I can’t sit somewhere for too long. I either get irritated easily. Sometimes I get this inspiration in me to do all the house I’ll do it but it doesn’t last long till my body’ kinda gives up on me. I dont know what to do. My husband told me to talk to my doctor but its like how do I explain this it’s so embarrassing I’m an adult and I shouldn’t be going through this. My husband said it could be adhd but idk. Even if it is I don’t want to take the medication for it I’ve heard it has very bad side effects sometimes people get suicidal. Let me know guys please