Thanks for replying.
I am using postman and it generates the Oauth token using my keys/tokens as:
OAuth oauth_consumer_key=“xxxxxxx”,oauth_token=“xxxxxxx”,oauth_signature_method=“HMAC-SHA1”,oauth_timestamp=“1539976256”,oauth_nonce=“ksnnGABeH54”,oauth_version=“1.0”,oauth_signature=“xxxxxx”
using the same OAuth tokens, i can easily access https://api.twitter.com/1.1/users/search.json?q=ladygaga with results. I do believe it has to be the encoding of from:ladygaga but i am stumped as it why its not working.