hi, i am a 18 years old girl. idk what is this feeling but from last few days i feel like crying for no reason,i feel so weak at times, i feel like doing nothing, all i miss the person i love who doesnt love me back, i have uninstalled all my social accounts so that i wont stalk that person, but i am feeling like i cant take this anymore, i feel so so sad at times, i feel like crying loud! plz tell me what to do