IPhone 5 signal strength issues?

I have had this phone for almost a year now without any problems. Recently, my phone has maintained an almost constant status of 1 reception bar - 3 at the most. This started happening a few weeks ago when a storm hit and caused a power outage. Nothing loads fast anymore - for example, when scrolling through pictures in my gallery my screen freezes for about thirty seconds. Apps take a few minutes to load their home pages, and even longer to update to current events. Sometimes I don't recieve messages from other people until 10-30 minutes later (but that only happens every few days or so.) I don't think I downloaded anything new/updated at the time. I've deleted all apps that I never use. I've tried resetting the phone by pressing its power button/home button at the same time, but nothing changed. Anyone have any ideas on how I could fix this?

Hi nezzitou,
Welcome to the Apple Support Communities!
I know you are not experiencing a “No Service” or “Searching” message as described in the following article, but I would still suggest these troubleshooting steps if you are having service issues.
iPhone: Troubleshooting No Service
http://support.apple.com/kb/ts4429
I know you stated that you first noticed this after a storm as well. It could be that a tower your carrier uses to provide cellular service to your area may be down as well. If you go through the troubleshooting and the issue continues, you may want to contact your carrier as described at the very bottom of the article.
If you're still experiencing No Service issues, contact your carrier to check for any network or account issues that could cause these symptoms.
I hope this helps,
-Joe

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hi
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Thank you for your answer!
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