Something just doesn't feel right, my arms feel weak, I can hear/feel my heartbeat in my ears, I…

Something just doesn't feel right, my arms feel weak, I can hear/feel my heartbeat in my ears, I feel more tired than I should be, and I feel like my heart is beating a bit harder than it should be. asked my MIL if she's bring me her blood pressure machine since she lives 5 minutes away compared to 30 mins away from hospital for now.