Does anyone else experience this as well?

i have existential anxiety, if you dont know what it is look it up. But i feel alone. TONS of people suffer from anxiety but yet i feel as tho no one relates to the same TYPE of anxiety i battle with. I have frequent panic attacks (just had one in the shower 15 mins ago) about me realizing my mortality and that eventually im going to die. This happens mostly when im alone or somethings triggers it. Does anyone else experience this as well? My college roommate just makes fun of me for it despite walking into one of my panic attacks once and her having depression & normal anxiety herself.