advice - strange AF symptoms after m/c

Hi guys, well after 2 months of using OPK's, I am not pg. Nice smiley faces, DTD enough times to cover it, and yet nothing. My thyroid levels are still way out so I'm thinking that is probably the primary reason.

But I wanted to ask ttcamers a question about something else ... the first time using OPK's I was convinced I was pg - very sore boobs, waking up thirsty, lying awake from about 5a.m., all symptoms I had for our 2 girls. AF was a couple of days late and totally surprised me. I'm wondering if that was a chemical ... fast forward to this month, I also had quite sore boobs but not as bad as last month. I've NEVER had these symptoms simply for AF, never knew when AF was due until it happened (cycles always varied from 30 - 32 days) ... so just wondering if you ladies have seen major differences in AF after m/c and particularly after d&c? I had a natural but incomplete m/c in May followed up by multiple appointments and finally a d&c in July (yes I know, drawn out) bec my body still thought I was pregnant. A second surprise pg and m/c followed at the end of August. I'm beginning to wonder if something isn't quite right to be causing these strong AF symptoms or whether I'm just having multiple chemicals? Any advice welcome!