HELP! CONSTIPATED!!

Charlotte • 💏 + 🎀👶10/28/16 + 🍬👶03/20/18

haven't been able to poop for 4 days. constantly feel like I need to go potty but every time I sit to go nothing comes out. I feel tired and sluggish. no matter how long I try or how much effort I give I can't seem to go. What do I do??? I feel so uncomfortable, pls if you know of any instant relief pls share!