I dont know man.. it should be written in the side effects..
I think everyone experiences some degree of facial bloating from minoxidil, even if it's not listed in the side effects. For me it's entirely dose dependent. I started off using 2ml once per day at night and my face looked bad, I would describe it as hangover face. I also felt some pressure in my chest. I lowered my dose to 1ml once per day and the side-effects are way more manageable. I'm seeing some vellus hairs growing in my hairline so I know it's working.