Recently over the span of last two months I have struggled with self harm and suicidal thoughts (though I haven't done any self harm, and I doubt i will ever succumb to those thoughts). It can't be really traced back to any specific moment. However they aren't consistent. Some day's I feel totally fine, or I can even somewhat enjoy life, others I just I hope I would stop existing.All those changes happen in the matter of a day. Its weird especially because I can't see any correlation between events of the day and my feelings. Is that common? I just don't understand it and I would really appreciate some insight.