Synthroid and ramble

Had total thyroidectomy 9 months ago and started taking Synthroid immediately thereafter. For the last 4 months I have noticed significant hair thinning. I have always had very thick, healthly looking hair but now it's just dry and brittle all of the time. I always feel tired and bloated around my stomach area in particular. I have always been a size 4-6 but have inexplicably gained 6 pounds in the last month. Is there an alternative to snythroid without these side effects?

i've been on synthroid for 9 years. started at some low dose and gradually went up to112 mg. get extreme itching all day everyday if i don't take allegra for that.not a rash just itching. that doesn't bother me as much as the fatique. every joint in my body aches all the time. sure there are better days but fo rthe most part it's bad. tried physical therapy and chiripratic care but no avail. they ended my sessions. my legs get sooo weak and my feet burn lower back really aches. sometimes muscle cramps. i'm very negative towards my loving family and it hurts me to do so. can't seem to keep upbeat. soo tired all the time.
is it the syntroid? i used to be very energenic and a doer. now i have spurts of activity in the morning , but then i just can't get motivated. help me any suggestions?