Does this sound like erectile dysfunction to you?

Well this is a bit embarrassing but lately I have had a little issue where if there isn’t constant stimulation to my penis I have trouble staying erect. It’s not so much when I am alone but with another person. It’s really bothering me because it’s been happening for awhile now and it’s embarrassing. I do get aroused often throughout the day and sometimes ugh “take care of business” 2–3 times a day with no issues. However I feel like my sex drive is alot less then it used to be because I rarely get aroused just off thoughts and usually have to have stimulation. Also I think a part of it is that if I am not strongly emotionally attached to the person or I know it’s just a fling it’s much more likely to happen. I am only 24 years old, do you think this is all in my head? Any advice, tips, similar experiences? This is like a nightmare anymore because when I was younger I certainely knew how to have a good time without any issues…maybe I desensitized myself to sex?