Nexplanon Implant .. I need Advice

Does anybody else have this implant?? I have had it in my arm for about almost four months. After the third month, I'm spotting all the time. Meaning nonstop. I'm fine with that i guess. But I've been getting really bad headaches like three times every week. Maybe a month or two ago it also made me extremely moody, made me start fights with my boyfriend. I have just been feeling like complete sh*t lately. Anybody else? I'm thinking about switching my birth control. What is the best birth control to get? I took the pill before but i was still iffy i know no birth control is 100% & depo made me bleed all the time too. Any ideas?